WO2013135090A1 - Procédé d'envoi, obtention et traitement de message et dispositif et système appropriés - Google Patents

Procédé d'envoi, obtention et traitement de message et dispositif et système appropriés Download PDF

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Publication number
WO2013135090A1
WO2013135090A1 PCT/CN2012/087760 CN2012087760W WO2013135090A1 WO 2013135090 A1 WO2013135090 A1 WO 2013135090A1 CN 2012087760 W CN2012087760 W CN 2012087760W WO 2013135090 A1 WO2013135090 A1 WO 2013135090A1
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WIPO (PCT)
Prior art keywords
terminal device
vehicle terminal
response
request
message
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PCT/CN2012/087760
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English (en)
Chinese (zh)
Inventor
刘海波
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华为终端有限公司
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Publication of WO2013135090A1 publication Critical patent/WO2013135090A1/fr

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/06—Selective distribution of broadcast services, e.g. multimedia broadcast multicast service [MBMS]; Services to user groups; One-way selective calling services
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/02—Services making use of location information
    • H04W4/024—Guidance services
    • 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]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W84/00—Network topologies
    • H04W84/02—Hierarchically pre-organised networks, e.g. paging networks, cellular networks, WLAN [Wireless Local Area Network] or WLL [Wireless Local Loop]
    • H04W84/10—Small scale networks; Flat hierarchical networks
    • H04W84/12—WLAN [Wireless Local Area Networks]

Definitions

  • the present invention relates to the field of communications technologies, and in particular, to a message sending, acquiring, processing method and related apparatus and system.
  • GPS Global Positioning System
  • the driving of the fleet refers to two or two vehicles.
  • the above-mentioned cars are driving, they have the same destination or follow each other, or they belong to the same organization (such as the same taxi company, the same coach company, etc.).
  • the current solution is to use the Push To Talk function to deliver information directly through dictation.
  • the information obtained cannot be automatically applied to the in-vehicle system, and the driver needs to manually input the obtained information, which is less intelligent.
  • the embodiment of the invention provides a message sending, acquiring, processing method and related device and system, so as to solve the problem that the information sharing intelligence between vehicles is low in the prior art.
  • a message sending method includes:
  • the first in-vehicle terminal device determines the required information
  • the first in-vehicle terminal device generates a request message according to the required information, where the request message is used to request to acquire the required information;
  • the first in-vehicle terminal device broadcasts the request message over a Wi-Fi wireless network.
  • a message acquisition method includes:
  • the first in-vehicle terminal device obtains a response message broadcast by the second in-vehicle terminal device through the Wi-Fi wireless network, where the response message carries information required by the first in-vehicle terminal device;
  • the first in-vehicle terminal device extracts the required information from the response message.
  • a message processing method including:
  • the second in-vehicle terminal device obtains the first in-vehicle terminal device broadcast through the Wi-Fi wireless network a message requesting, the request message is used to indicate that the first in-vehicle terminal device requests to obtain the required information; and the second in-vehicle terminal device determines, according to the request message, whether the required information exists in itself; if yes, The second in-vehicle terminal device generates a response message including the required information; the second in-vehicle terminal device broadcasts the response message through a Wi-Fi wireless network.
  • - Vehicle-mounted terminal equipment including:
  • a first processor configured to determine required information; generating, according to the required information, a request message, where the request message is used to request to acquire the required information;
  • the first transceiver is configured to broadcast the request message over a Wi-Fi wireless network.
  • An embodiment of the present invention provides another in-vehicle terminal device, including:
  • a second transceiver configured to acquire, by using a Wi-Fi wireless network, a response message broadcast by another in-vehicle terminal device, where the response message carries information required by the in-vehicle terminal device;
  • a second processor configured to extract the required information from the response message.
  • An embodiment of the present invention further provides another in-vehicle terminal device, including:
  • a third transceiver configured to acquire, by using a Wi-Fi wireless network, a request message broadcast by another in-vehicle terminal device, where the request message is used to instruct the another in-vehicle terminal device to request acquisition of required information; Determining, according to the request message, whether the in-vehicle terminal device itself has the required information; if yes, the third processor generates a response message including the required information;
  • the third transceiver is further configured to broadcast the response message over a Wi-Fi wireless network.
  • the embodiment of the invention further provides a message processing system, including:
  • the first in-vehicle terminal device is configured to: determine required information; generate a request message according to the required information, where the request message is used to request to acquire the required information; and use a Wi-Fi wireless network broadcast station Request message
  • the second in-vehicle terminal device is configured to: acquire, by using a Wi-Fi wireless network, a request message that is broadcast by the first in-vehicle terminal device, where the request message is used to instruct the first in-vehicle terminal device to request acquisition of required information; Determining, by the request message, whether the required information exists; if so, the second in-vehicle terminal device generates a response message including the required information; and broadcasting the response message through a Wi-Fi wireless network;
  • the first vehicle-mounted terminal device is further configured to: acquire the second vehicle through a Wi-Fi wireless network a response message broadcast by the terminal device, the response message carrying information required by the first in-vehicle terminal device; and extracting the required information from the response message.
  • a message sending, acquiring, processing method and related device and system provided by an embodiment of the present invention determine the required information by using the first in-vehicle terminal device, and generate and broadcast according to the required information. Requesting a request message for obtaining the required information; the process does not require user intervention, and the first in-vehicle terminal device can automatically obtain the response message carrying the required information and realize information sharing according to the broadcast request message for requesting the acquisition of the required information. Improve intelligence.
  • FIG. 1 is a flowchart of a message sending method according to an embodiment of the present invention
  • FIG. 1b is a schematic diagram of a frame structure of a message carrying a message in a beacon frame according to the present invention
  • FIG. 1c is a schematic diagram of another frame structure for carrying a message in a beacon frame according to the present invention.
  • FIG. 3 is a flowchart of a message processing method according to an embodiment of the present invention.
  • FIG. 4 is a schematic structural diagram of a terminal device according to an embodiment of the present disclosure.
  • FIG. 5 is a schematic structural diagram of another terminal device according to an embodiment of the present disclosure.
  • FIG. 6 is a schematic structural diagram of another terminal device according to an embodiment of the present disclosure.
  • FIG. 7 is a schematic structural diagram of a message processing system according to an embodiment of the present invention.
  • the embodiment of the invention provides a message sending, acquiring, processing method and related device and system, so as to solve the problem that the information sharing intelligence between vehicles is low in the prior art.
  • FIG. 1A is a flowchart of a method for sending a message according to an embodiment of the present invention. Wherein the method comprises:
  • the first in-vehicle terminal device determines required information
  • the first in-vehicle terminal device can determine the required information according to the current navigation requirement or according to the received demand instruction, wherein the demand instruction can be an audio or video demand instruction input by the user.
  • the first in-vehicle terminal device generates a request message according to the required information, where the request message is used to request to obtain the required information.
  • the first in-vehicle terminal device broadcasts the request message through a Wi-Fi wireless network.
  • a message sending method determines the required information by using the first in-vehicle terminal device, generates and broadcasts a request message for requesting acquisition of the required information according to the required information; The intervention is based on the broadcast request message for requesting the acquisition of the required information, so that the first in-vehicle terminal device can automatically acquire the response message carrying the required information, realize information sharing, and improve intelligence.
  • the message sending method provided by the embodiment of the present invention may encapsulate the request message in the request beacon frame before broadcasting the request message, and then broadcast the request message, that is, specifically broadcast the request beacon frame;
  • the request indication identifier may be encapsulated in the request beacon frame, where the request indication identifier is used to indicate that the request beacon frame carries the request message, which is understandable.
  • the request message is information required to request acquisition of the first in-vehicle terminal device.
  • Step 11 The first in-vehicle terminal device determines the required information according to the current navigation requirement or according to the received audio and video demand instruction;
  • Step 12 The first in-vehicle terminal device generates a request message according to the required information
  • request message is used to indicate that the first in-vehicle terminal device requests to obtain the required information
  • Step 13 The first in-vehicle terminal device encapsulates the request message in the request beacon frame
  • the frame structure of the request beacon frame in the embodiment of the present invention can use the frame structure of the beacon frame (that is, the Beacon frame) defined by the 802.11 protocol, where the beacon frame defined by the 802.11 protocol (that is, the Beacon frame) Frame structure ⁇ is shown in Table 1: Table 1
  • FC, Duration, DA, SA, Bss ID and Seq belong to the field in the frame header.
  • the FC is a frame control field, and the size is 2 bytes, which is used to indicate the protocol version of the beacon frame, whether it is a retransmission frame, etc.; the Duration value is used for network allocation vector calculation, and its size is 2 bytes, and DA is the purpose.
  • the address field which is 6 bytes in size, is used to identify the address of the receiving station.
  • DA is a broadcast address; SA is a source address field, and the size is 6 bytes, and the first three bytes are represented by American Electric. And an address assigned to the vendor by the IEEE, the Institute of Electrical and Electronics Engineers, which is used to identify the workstation that transmits the beacon frame.
  • the SA in the embodiment of the present invention is the address of the AP that sends the beacon frame.
  • the Bss ID is an identifier of the basic service device (that is, the Basic Service Set), and its size is 6 bytes.
  • the SC is a sequence control field (Sequence Control), and its size is 2 bytes, and the segment number and the serial number are Composition, used to indicate the order of different segments in the same frame, and used to identify the copy of the packet;
  • Frame body is the frame body, its size is 0 2312 bytes;
  • FCS field is used for the bearer Cyclic redundancy check code.
  • the message (or information) is encapsulated or carried in the frame body of the beacon frame, and the actual manner can be as follows:
  • the parameter format can be defined by the 802.11 standard.
  • the element identifier (EID, Element Identity) of the variable length parameter is a newly defined value. , does not overlap with the defined value in 802.11, its size is 1 byte (that is, 1 bytes), such as the undefined value can be selected from the current reserved values of 802.11 11 ⁇ : 15 , 43-49, 32-255
  • the Length parameter is used to identify the length of the data to be broadcast. The length of the data is equal to N bytes. The value of N is equal to the value of the Length parameter.
  • the 802.11 standard defines the beacon frame.
  • the size of the Medium parameter is 1 bytes, that is, the maximum value of N is 255. Therefore, in the present scheme, the beacon frame can carry a message (or information) of a size of 255 bytes, or, as shown in FIG. 1c, in the embodiment of the present invention.
  • the protocol between the first in-vehicle terminal and another in-vehicle terminal can also be modified to change the length of the Length parameter to 2 bytes, and the maximum value of N is 65535. Therefore, the beacon frame can carry up to 65535 bytes.
  • the length of the Length parameter may be modified to be larger, so that the beacon frame can carry more messages (or information), which is not limited herein.
  • the request message is encapsulated in the request beacon frame.
  • the request indication identifier may be encapsulated in the request beacon frame, where the request indication identifier is used to indicate
  • the request beacon frame carries a request message, so that another in-vehicle terminal device (such as the second in-vehicle terminal device) within its broadcast range can acquire only the request beacon frame carrying the request indication identifier of the request message;
  • a mandatory fixed length parameter may be added to the frame body of the request beacon frame, and the value of the fixed length parameter is used as the request indication identifier of the request message.
  • the fixed length may be defined.
  • the value of the parameter is 0 as the request indication identifier of the request message, that is, when the value of the fixed length parameter in the request beacon frame is 0, it indicates that the request beacon frame carries the request message, and the second in-vehicle terminal device is When the beacon frame is received, if the value of the fixed length parameter in the beacon frame is not 0, it indicates that the request message is not carried in the beacon frame.
  • the time interval indication parameter may also be carried in the request beacon frame of the current broadcast, where the time interval indication parameter is used to indicate the request beacon frame carrying the next request message and the current broadcast request.
  • a broadcast interval between the beacon frames, so that the second in-vehicle terminal device can obtain the next request beacon frame carrying the request message according to the broadcast interval in the embodiment of the present invention, in the frame body of the request beacon frame Add a required fixed length parameter as the time interval indication parameter. For example, when the value of the time interval indication parameter is 1, it indicates that the next request beacon frame will carry a request message, if the time interval indicates the parameter A value of 2 indicates that the next request beacon frame does not carry the request message, and the next request beacon frame carries the request message, and so on.
  • the introduction of the time interval indication parameter enables the second in-vehicle terminal device to control the broadcast frequency of the request beacon frame carrying the request message.
  • Step 14 The first in-vehicle terminal device broadcasts the request beacon frame through the Wi-Fi wireless network; after steps 11, 12 and 13, the first in-vehicle terminal device broadcasts the request beacon frame carrying the request message, so as to be in the first The other in-vehicle terminal devices within the coverage of the in-vehicle terminal device broadcast can acquire and respond to the request beacon frame.
  • a message sending method determines the required information by using the first in-vehicle terminal device, generates and transmits a request for requesting the required information through the Wi-Fi wireless network according to the required information. a message; the process does not require user intervention, according to the broadcast request message for requesting acquisition of the required information, so that the other in-vehicle terminal device within the coverage of the first in-vehicle terminal device network can acquire the request message and respond, thereby making The first in-vehicle terminal device can automatically acquire the response message carrying the required information, realize information sharing, and improve intelligence.
  • FIG. 2 is a flowchart of a method for acquiring a message according to an embodiment of the present invention, where the method includes:
  • the first in-vehicle terminal device obtains, by using a Wi-Fi wireless network, a response message broadcast by the second in-vehicle terminal device, where the response message carries information required by the first in-vehicle terminal device;
  • the first in-vehicle terminal device may be determined according to the current navigation requirement or according to the received requirement instruction, where the demand instruction may be the audio input by the user. Or video demand instructions, etc.
  • the first in-vehicle terminal device extracts the required information from the response message.
  • the first in-vehicle terminal device acquires a response message broadcast by the second in-vehicle terminal device, and extracts the required information requested by the response from the response message, so that the first The vehicle terminal device can automatically obtain the message carrying the required information for the current needs, and the process does not require user intervention, realizes information sharing, and improves intelligence.
  • the message obtaining method provided by the embodiment of the present invention passes the first in-vehicle terminal device
  • the Wi-Fi wireless network acquires a response message broadcasted by the second in-vehicle terminal device, and may obtain, by the first in-vehicle terminal device, the response beacon frame that carries the response message broadcast by the second in-vehicle terminal device through the Wi-Fi wireless network, and then the first in-vehicle device
  • the terminal device extracts the required information from the response message, that is, the first in-vehicle terminal device extracts the response message from the response beacon frame, and extracts the required information from the response message; in this embodiment, acquiring the response message
  • the response to the beacon frame may be specifically configured to obtain the response beacon frame according to the response indication identifier, where the response indication identifier is used to indicate that the response beacon frame carries the response message, and it is understood that the response message carries the first in-vehicle terminal. Information required for the device.
  • Step 21 The first in-vehicle terminal device acquires a response beacon frame broadcast by the second in-vehicle terminal device through the Wi-Fi wireless network;
  • the response beacon frame broadcasted by the second in-vehicle terminal device may be received, where the response beacon frame carries the response message.
  • the response message carries information required by the first in-vehicle terminal device.
  • the method for obtaining the response beacon frame may be as follows:
  • the first in-vehicle terminal device may acquire the response beacon frame according to the response indication identifier, where the response indication identifier is Used to indicate that the response beacon frame carries a response message,
  • the response message carries the information required by the first in-vehicle terminal device;
  • the first in-vehicle terminal device can obtain the response beacon frame carrying the response message by identifying the response indication identifier, that is, when the beacon frame does not carry the response indication of the response message
  • the first in-vehicle terminal device may choose not to acquire the beacon frame.
  • the first in-vehicle terminal device may acquire a response beacon frame according to a time interval indication parameter carried in the currently broadcasted response beacon frame, where the time interval indication parameter is used to indicate the next carried response And a broadcast interval between the response beacon frame of the message and the currently broadcasted response beacon frame, the first in-vehicle terminal device may acquire the next response beacon frame carrying the response message according to the broadcast interval.
  • the second in-vehicle terminal device may divide the response message into multiple pieces of data, respectively broadcast the data segment of the required information through multiple response beacon frames, and encapsulate the segment number indication parameter in the carrying
  • the number of segments indicates that the parameter is used to indicate the number of data segments of the response message to be broadcasted
  • the first in-vehicle terminal device may acquire all the parameters according to the number of segments carried in the response beacon frame.
  • the response beacon frame carrying the data segment of the response message.
  • Step 22 The first in-vehicle terminal device extracts the required information from the response message.
  • the first in-vehicle terminal device After acquiring the response beacon frame carrying the response message, the first in-vehicle terminal device extracts the response message in the response beacon frame, and extracts the required information from the response message.
  • the extracted required information is output, for example, It can be output to the display so that the first in-vehicle terminal device user can view the required information for the current navigation needs, or the audio and video needs.
  • the responding beacon frame carries the segment number indicating parameter
  • the first in-vehicle terminal device may, according to the segment number indicating parameter, after receiving the beacon frame of the last data segment carrying the response message. , extract all the data fragments of the response message, and restore all the data fragments to a complete response message.
  • the response beacon frame may further carry the segment location indication information, where the segment location indication information is used to indicate the location of the data segment of the response beacon frame in the response message, and the first in-vehicle terminal device may receive the bearer response.
  • the first in-vehicle terminal device After responding to the beacon frame of the last data segment of the message, according to the segment position indication information in the response beacon frame, all the extracted data segments are restored to a complete response message, and then the required information is extracted from the response message;
  • the first in-vehicle terminal device can also recover all the extracted data segments into a complete response message according to the obtained timing relationship of the response beacon frame, and then extract the required information from the response message, which is not limited herein.
  • FIG. 3 is a flowchart of a message processing method according to an embodiment of the present invention. The method mainly describes that an in-vehicle terminal device acquires request information of another in-vehicle terminal device, and then analyzes the request information. And generating a response message, and broadcasting a message processing procedure of the response information, the method enabling the in-vehicle terminal device that broadcasts the request information to acquire the response message, thereby satisfying current needs.
  • the method comprises:
  • the second in-vehicle terminal device obtains, by using a Wi-Fi wireless network, a request message broadcast by the first in-vehicle terminal device, where the request message is used to indicate that the first in-vehicle terminal device requests to obtain the required information.
  • the required information requested by the terminal device may be determined according to current navigation needs or according to the received audio and video demand instruction.
  • the second in-vehicle terminal device determines, according to the request message, whether the required information exists.
  • the second in-vehicle terminal device determines, according to the request message, whether information required by the first in-vehicle terminal device is stored in the local database.
  • the second in-vehicle terminal device If yes, the second in-vehicle terminal device generates a response message that includes the required information. If it is determined that the information required by the first terminal device is stored in the local database, a response message is generated, where the response message carries the foregoing message. Required information.
  • the second in-vehicle terminal device broadcasts the response message through a Wi-Fi wireless network.
  • the second in-vehicle terminal device obtains the request information of the first in-vehicle terminal device, wherein the request information is used to request to acquire the required information, and thereafter, the second The in-vehicle terminal device generates a response message carrying the required information, and broadcasts the response message.
  • the method enables the first in-vehicle terminal device to automatically obtain the response message, thereby satisfying current needs, realizing information sharing, and improving intelligence.
  • the message processing method provided by the embodiment of the present invention may encapsulate the response message in the response beacon frame before broadcasting the response message, and then the second in-vehicle terminal device broadcasts the response message through the Wi-Fi wireless network. Broadcasting the response beacon frame for the second in-vehicle terminal device through the Wi-Fi wireless network; in this embodiment, the second in-vehicle terminal device may also respond to the indication before broadcasting the response beacon frame through the Wi-Fi wireless network
  • the identifier is encapsulated in a response beacon frame, where The response indication identifier is used to indicate that the response beacon frame carries a response message, and the request message is used to indicate that the first terminal device requests to obtain the required information, where the response message carries the foregoing required information.
  • Step 31 The second in-vehicle terminal device acquires a request message broadcast by the first in-vehicle terminal device through the Wi-Fi wireless network;
  • the request message broadcasted by the first in-vehicle terminal device may be received, where the request message is used to indicate the first in-vehicle terminal device Request the required information.
  • the request message may be encapsulated in the request beacon frame, that is, the first in-vehicle terminal device broadcasts the request beacon frame, and when the second in-vehicle terminal device enters the first When the network coverage of the in-vehicle terminal device is received, the request beacon frame broadcast by the first in-vehicle terminal device may be received.
  • the method for obtaining the request beacon frame may be implemented as follows:
  • the second in-vehicle terminal device may acquire the request beacon frame according to the request indication identifier, where the request indication identifier is And indicating that the request beacon frame carries the request message;
  • the second in-vehicle terminal device may obtain the request beacon frame according to the time interval indication parameter carried in the currently broadcasted request beacon frame.
  • the time interval indication parameter is used to indicate a broadcast interval between the request beacon frame carrying the next request message and the currently broadcast request beacon frame.
  • Step 32 The second in-vehicle terminal device determines, according to the request message, whether the required information exists in itself;
  • step 31 it can be understood that, since the request message is encapsulated in the request beacon frame, the second in-vehicle terminal device determines whether the required information exists according to the request beacon frame; Step 33: If yes, the second in-vehicle terminal device generates a response message that includes the required information. If it is determined that the information required by the first in-vehicle terminal device is stored in the local database, a response message is generated, where the response message carries the foregoing Information is required.
  • Step 34 The second in-vehicle terminal device encapsulates the response message in the response beacon frame
  • the response indication identifier may be encapsulated in the response beacon frame, where the response indication identifier is used to indicate that the response beacon frame carries the response message, so that another vehicle in the broadcast range thereof
  • the terminal device (such as the first in-vehicle terminal device) may acquire an response beacon frame carrying the response indication identifier of the response message;
  • the time interval indication parameter may also be carried in the currently broadcasted response beacon frame, where the time interval indication parameter is used to indicate the next response beacon frame carrying the response message and the current broadcast response. a broadcast interval between the beacon frames, so that the first in-vehicle terminal device can acquire the next response beacon frame carrying the response message according to the broadcast interval;
  • the response message may be divided into multiple data segments, and the data segments of the response message are respectively broadcasted by multiple response beacon frames, and the second in-vehicle terminal device encapsulates the segment number indication parameter in the carrying response message.
  • the response beacon frame of the data segment the number of data segments used to indicate the required information to be broadcast.
  • the second in-vehicle terminal device encapsulates the segment location indication information in the response beacon frame of the data segment carrying the response message to indicate the location of the data segment in the response beacon frame in the required information, of course,
  • the second in-vehicle terminal device may also not carry the segment location indication information in the response beacon frame, and the response beacon frame carrying the data segment is sequentially broadcast according to the position of each data segment in the required information, which is not limited herein.
  • Step 34 The second in-vehicle terminal device broadcasts the response beacon frame through the Wi-Fi wireless network; after steps 31, 32 and 33, the second in-vehicle terminal device broadcasts the response beacon frame carrying the response message, so as to be in the
  • the first in-vehicle terminal device that broadcasts the request message in the coverage area can obtain the response beacon frame, and extract the required information therein to meet the current navigation needs, audio and video requirements, and the like.
  • the second in-vehicle terminal device obtains the request information of the first in-vehicle terminal device, wherein the request information is used to request to acquire the required information, and thereafter, the second The in-vehicle terminal device generates a response message carrying the required information, and broadcasts the response message.
  • the method enables the first in-vehicle terminal device to automatically obtain the response message, thereby satisfying current navigation needs and audio and video requirements, realizing information sharing, and improving Intelligence.
  • the embodiments of the present invention further provide related devices for implementing the foregoing methods.
  • FIG. 4 is a schematic structural diagram of the in-vehicle terminal device, including:
  • the first processor 401 is configured to determine required information; and generate a request message according to the required information, where the request message is used to request to obtain the required information;
  • the first transceiver 402 is configured to broadcast the request message over a Wi-Fi wireless network.
  • the first processor 401 determines that the required information may be specifically determined according to the current navigation requirement, or determines the required information according to the received audio and video requirement instruction; wherein the request message is used to request to acquire the required information;
  • the first processor 401 is further configured to encapsulate the request message in the request beacon frame; then the first transceiver 402 is specifically configured to broadcast the request beacon frame by using Wi-Fi;
  • the first processor 401 is further configured to encapsulate the request indication identifier in the request beacon frame, where the request indication identifier is used to indicate that the request beacon frame carries the request message.
  • the request message is encapsulated in the request beacon frame.
  • the request indication identifier may be encapsulated in the request beacon frame, where the request indication identifier is used to indicate the request beacon.
  • the request message is carried in the frame, so that another in-vehicle terminal device in its broadcast range can acquire the request beacon frame carrying the request indication identifier of the request message;
  • the time interval indication parameter may also be carried in the request beacon frame of the current broadcast, where the time interval indication parameter is used to indicate the request beacon frame carrying the next request message and the current broadcast request.
  • the broadcast interval between the beacon frames so that another in-vehicle terminal device can acquire the next request beacon frame carrying the request message according to the broadcast interval.
  • the functions of the respective functional modules may be implemented according to the method in the foregoing method embodiment.
  • the specific implementation process reference may be made to the related description of the foregoing method embodiments, and details are not described herein again.
  • an in-vehicle terminal device determines required information, generates and broadcasts a request message for requesting acquisition of required information according to required information; the process does not require user intervention, and is used according to the broadcast.
  • the request message for obtaining the required information is requested, so that the vehicle-mounted terminal device can automatically acquire the response message carrying the required information, realize information sharing, and improve intelligence.
  • the embodiment of the present invention provides another vehicular terminal device. Referring to FIG. 5, FIG. 5 is a schematic structural diagram of the vehicular terminal device provided by the embodiment, where the vehicular terminal device includes:
  • a second transceiver 502 configured to acquire another car terminal device broadcast through a Wi-Fi wireless network Responding to a message, the response message carrying information required by the vehicle terminal device;
  • the second processor 501 is configured to extract required information from the response message.
  • the second transceiver 502 is further configured to acquire a response beacon frame that carries the response message.
  • the second processor 501 is specifically configured to extract a response message from the response beacon frame, and then extract the required response message from the response message frame. information.
  • the second transceiver 502 is specifically configured to acquire, according to the response indication identifier, a response beacon frame broadcast by another in-vehicle terminal device by using a Wi-Fi wireless network, where the response indication identifier is used to indicate the response beacon frame.
  • the response message is carried in the response message, where the response message carries the required information indicating that the in-vehicle terminal device requests the acquisition.
  • the response beacon frame broadcasted by the second in-vehicle terminal device may be received, where the response beacon frame carries the response message.
  • the in-vehicle terminal device may acquire an response beacon frame according to the response indication identifier, where the response indication identifier is used to indicate the response
  • the beacon frame carries a response message
  • the in-vehicle terminal device can obtain the response beacon frame carrying the response message by identifying the response indication identifier, that is, when the beacon frame does not carry the response indication identifier of the response message, the in-vehicle frame
  • the terminal device may choose not to acquire the beacon frame.
  • the in-vehicle terminal device may obtain a response beacon frame according to a time interval indication parameter carried in the currently broadcasted response beacon frame, where the time interval indication parameter is used to indicate the next carry response message.
  • the broadcast interval between the response beacon frame and the currently broadcasted response beacon frame the in-vehicle terminal device can acquire the next response beacon frame carrying the response message according to the broadcast interval.
  • the in-vehicle terminal device that broadcasts the response message may divide the response message into a plurality of data segments, respectively broadcast the data segments of the response message through multiple response beacon frames, and encapsulate the segment number indication parameter in the In the response beacon frame of the data segment carrying the response message, the number of segments indicates that the parameter is used to indicate the number of data segments of the response message to be broadcasted, and the in-vehicle terminal device provided in this embodiment may respond to the segment carried in the response beacon frame.
  • the number indication parameter acquires all response beacon frames of the data segments carrying the response message.
  • each functional module may be rooted
  • the method in the foregoing method embodiment is specifically implemented, and the specific implementation process may refer to the related description of the foregoing method embodiment, and details are not described herein again.
  • an vehicular terminal device obtains a response message broadcasted by another vehicular terminal device, and extracts, from the response message, the required information requested by the vehicular terminal, so that the vehicular terminal
  • the device can automatically obtain the message carrying the required information, and is used for the current navigation needs.
  • the process does not require user intervention, realizes information sharing, and improves intelligence.
  • the embodiment of the present invention further provides another in-vehicle terminal device, which is mainly used for acquiring the request information of another in-vehicle terminal device by the in-vehicle terminal device, and then analyzing the request information, generating a response message, and broadcasting the response information.
  • FIG. 6 is a schematic structural diagram of an in-vehicle terminal device provided by the embodiment, where the in-vehicle terminal device includes:
  • a third transceiver 602 configured to acquire, by using a Wi-Fi wireless network, a request message broadcast by another in-vehicle terminal device, where the request message is used to indicate that the another in-vehicle terminal device requests to acquire required information; and the third processor 601 And determining, according to the request message, whether the in-vehicle terminal device itself has the required information; if yes, the third processor 601 generates a response message including the required information;
  • the third transceiver 602 is further configured to broadcast the response message over the Wi-Fi wireless network.
  • the third processor 601 is further configured to encapsulate the response message in the response beacon frame.
  • the third transceiver 602 may be specifically configured to acquire the request beacon frame broadcast by another in-vehicle terminal device through the Wi-Fi wireless network.
  • the request beacon frame is used to instruct the another in-vehicle terminal device to request acquisition of required information; and the response beacon frame is broadcasted through a Wi-Fi wireless network.
  • the third processor 601 is further configured to encapsulate the response indication identifier in the response beacon frame, where the response indication identifier is used to indicate that the response beacon frame carries the response message.
  • the requesting beacon frame of the broadcast is obtained, wherein, in an application scenario, the in-vehicle terminal device may acquire the request beacon frame according to the request indication identifier, where the request indication identifier is used to indicate the request beacon
  • the frame carries a request message
  • the in-vehicle terminal device may acquire a request beacon frame according to a time interval indication parameter carried in the currently broadcasted request beacon frame, where the time interval indication parameter is used to indicate the next carry request message.
  • the broadcast interval between the request beacon frame and the currently broadcast request beacon frame may be acquired according to a time interval indication parameter carried in the currently broadcasted request beacon frame, where the time interval indication parameter is used to indicate the next carry request message.
  • the response message is encapsulated in the response to the beacon frame.
  • the response indication identifier may be encapsulated in the response beacon frame, where the response indication identifier is used to indicate back
  • the beacon frame carries a response message, so that another in-vehicle terminal device within its broadcast range can acquire the response beacon frame carrying the response indication identifier of the response message;
  • the time interval indication parameter may also be carried in the currently broadcasted response beacon frame, where the time interval indication parameter is used to indicate the next response beacon frame carrying the response message and the current broadcast response. Broadcast interval between beacon frames, so that another in-vehicle terminal device can acquire the next response beacon frame carrying the response message according to the broadcast interval;
  • the response message may be divided into multiple data segments, and the data segments of the response message are respectively broadcasted by multiple response beacon frames, and the in-vehicle terminal device encapsulates the segment number indication parameter in the message carrying the response message.
  • the response beacon frame of the data segment the number of data segments used to indicate the response message to be broadcast.
  • the in-vehicle terminal device encapsulates the segment location indication information in the response beacon frame carrying the data segment of the response message to indicate the location of the data segment in the response beacon frame in the response message, of course, the vehicle terminal
  • the device may also not carry the segment location indication information in the response beacon frame, and the response beacon frame carrying the data segment is sequentially broadcast according to the position of each data segment in the required information, which is not limited herein.
  • the functions of the respective functional modules may be implemented according to the method in the foregoing method embodiment.
  • the specific implementation process reference may be made to the related description of the foregoing method embodiments, and details are not described herein again.
  • an in-vehicle terminal device acquires request information of another in-vehicle terminal device, wherein the request information is used to request acquisition of required information, and thereafter, the in-vehicle terminal The device generates a response message carrying the required information, and broadcasts the response message, so that another in-vehicle terminal device can automatically obtain the response message, thereby satisfying the current needs, realizing information sharing, and improving intelligence.
  • the embodiments of the present invention further provide related systems for implementing the foregoing methods.
  • the meaning of the noun is the same as that in the above method, and the specific implementation details can be referred to the description in the method embodiment.
  • a message processing system according to an embodiment of the present invention is described below. Referring to FIG. 7, a schematic structural diagram of the message processing system 700 is provided. The system includes:
  • the first in-vehicle terminal device 701 is configured to determine required information; generate a request message according to the required information, and the request message is used to request to obtain the required information; and broadcast through a Wi-Fi wireless network.
  • Request message
  • the second in-vehicle terminal device 702 is configured to: acquire, by using a Wi-Fi wireless network, a request message broadcast by the first in-vehicle terminal device 701, where the request message is used to instruct the first in-vehicle terminal device 701 to request to acquire the required information; and determine the self according to the request message. Whether the required information exists; if so, the second in-vehicle terminal device 702 generates a response message containing the required information; and broadcasts the response message through the Wi-Fi wireless network.
  • the first in-vehicle terminal device 701 is further configured to: obtain, by using a Wi-Fi wireless network, a response message broadcast by the second in-vehicle terminal device 702, where the response message carries information required by the first in-vehicle terminal device 701; and extracts required information from the response message.
  • first in-vehicle terminal device 701 and the second in-vehicle terminal device 702 in the message sending, acquiring, and processing system provided in this embodiment may be the first in-vehicle terminal device and the second in-vehicle terminal device in the foregoing method embodiments, respectively. It can be specifically implemented according to the method in the foregoing method embodiment, and the specific implementation process can refer to the related description of the foregoing method embodiment, and details are not described herein again.
  • the message processing system provided by the embodiment of the present invention: the first in-vehicle terminal device determines required information, generates and broadcasts a request message for requesting acquisition of required information according to the required information; Receiving, by the terminal device, the request information of the first in-vehicle terminal device, generating a response message carrying the required information, and broadcasting the response message; thereafter, the first in-vehicle terminal device acquires a response message broadcast by the second in-vehicle terminal device, and from the The response message extracts the required information obtained by the request, and the processing process enables the first in-vehicle terminal device to automatically acquire the message carrying the required information for the current navigation needs, etc., the process does not require user intervention, realizes information sharing, and improves intelligence. Sex.
  • the disclosed system, apparatus, and method may be implemented in other manners.
  • the device embodiments described above are merely illustrative.
  • the division of the unit is only a logical function division.
  • there may be another division manner for example, multiple units or components may be combined or Can be integrated into another system, or some features can be ignored, or not executed.
  • the mutual coupling or direct coupling or communication connection shown or discussed may be an indirect coupling or communication connection through some interface, device or unit, and may be in an electrical, mechanical or other form.
  • the components displayed for the unit may or may not be physical units, ie may be located in one place, or may be distributed over multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of the embodiment.
  • each functional unit in each embodiment of the present invention may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.
  • the above integrated unit can be implemented in the form of hardware or in the form of a software function unit.
  • the integrated unit if implemented in the form of a software functional unit and sold or used as a standalone product, may be stored in a computer readable storage medium.
  • the technical solution of the present invention may contribute to the prior art or all or part of the technical solution may be embodied in the form of a software product stored in a storage medium.
  • a number of instructions are included to cause a computer device (which may be a personal computer, server, or network device, etc.) to perform all or part of the steps of the methods described in various embodiments of the present invention.
  • the foregoing storage medium includes: a USB flash drive, a mobile hard disk, and a read only memory (ROM, Read-Only)
  • RAM random access memory
  • disk or optical disk and other media that can store program code.

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

Abstract

La présente invention concerne un procédé d'envoi, d'obtention et de traitement de message et un dispositif et un système appropriés, de manière à résoudre le problème d'intelligence faible dans le partage d'informations entre véhicules dans la technique antérieure. Le procédé de la présente invention comprend un premier dispositif de terminal embarqué déterminant les informations requises, selon les données requises, générant un message de requête qui est utilisé pour demander l'obtention des informations requises, et la diffusion du message de demande à travers un réseau sans fil Wifi ; un second dispositif de terminal embarqué obtenant les informations de demande à partir du premier dispositif terminal embarqué, générant un message de réponse portant les informations requises, et de diffusion du message de réponse à travers le réseau sans fil Wifi ; et le premier dispositif terminal embarqué obtenant le message de réponse qui est diffusé par le second dispositif terminal embarqué, et l'extraction à partir du message de réponse des informations requises demandées par le premier dispositif terminal embarqué.
PCT/CN2012/087760 2012-03-15 2012-12-28 Procédé d'envoi, obtention et traitement de message et dispositif et système appropriés WO2013135090A1 (fr)

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JP6701188B2 (ja) * 2014-10-08 2020-05-27 華為技術有限公司Ｈｕａｗｅｉ Ｔｅｃｈｎｏｌｏｇｉｅｓ Ｃｏ．，Ｌｔｄ． 車載端末と車載端末の間で情報を交換するための方法
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