CN111710060A - Passenger information transmission method and system for big data analysis based on Internet of vehicles - Google Patents

Passenger information transmission method and system for big data analysis based on Internet of vehicles Download PDF

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Publication number
CN111710060A
CN111710060A CN202010599306.9A CN202010599306A CN111710060A CN 111710060 A CN111710060 A CN 111710060A CN 202010599306 A CN202010599306 A CN 202010599306A CN 111710060 A CN111710060 A CN 111710060A
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random access
mobile terminal
vehicle
base station
transmitting
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CN111710060B (en
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王子芹
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Shanghai Wujing Information Technology Co.,Ltd.
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Beijing Guangyu Zhixun Technology Co ltd
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    • GPHYSICS
    • G07CHECKING-DEVICES
    • G07CTIME OR ATTENDANCE REGISTERS; REGISTERING OR INDICATING THE WORKING OF MACHINES; GENERATING RANDOM NUMBERS; VOTING OR LOTTERY APPARATUS; ARRANGEMENTS, SYSTEMS OR APPARATUS FOR CHECKING NOT PROVIDED FOR ELSEWHERE
    • G07C5/00Registering or indicating the working of vehicles
    • G07C5/08Registering or indicating performance data other than driving, working, idle, or waiting time, with or without registering driving, working, idle or waiting time
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W4/00Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/30Services specially adapted for particular environments, situations or purposes
    • H04W4/40Services specially adapted for particular environments, situations or purposes for vehicles, e.g. vehicle-to-pedestrians [V2P]
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W4/00Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/30Services specially adapted for particular environments, situations or purposes
    • H04W4/40Services specially adapted for particular environments, situations or purposes for vehicles, e.g. vehicle-to-pedestrians [V2P]
    • H04W4/44Services 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]
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W74/00Wireless channel access
    • H04W74/002Transmission of channel access control information
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W74/00Wireless channel access
    • H04W74/08Non-scheduled access, e.g. ALOHA
    • H04W74/0833Random access procedures, e.g. with 4-step access

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

Abstract

The invention discloses a passenger information transmission method for big data analysis based on the Internet of vehicles, which comprises the following steps: collecting passenger information by the vehicle-mounted mobile terminal; monitoring basic system information transmitted by a first base station by a vehicle-mounted mobile terminal; in response to monitoring the basic system information transmitted by the first base station, determining, by the vehicle-mounted mobile terminal, an indication of a random access preamble in the basic system information; in response to determining the indication of the random access preamble in the basic system information, the vehicle-mounted mobile terminal determines whether the total number of sequences of the random access preamble is larger than the size of the first random access preamble set; if the total number of the sequences of the random access lead codes is larger than the size of the first random access lead code set, the vehicle-mounted mobile terminal determines that the first base station supports the second random access lead code set; and if the first base station supports the second random access lead code set, determining the PRACH resource for sending the random access lead code by the vehicle-mounted mobile terminal.

Description

Passenger information transmission method and system for big data analysis based on Internet of vehicles
Technical Field
The invention relates to the technical field of vehicle networking, in particular to a method and a system for transmitting passenger information for big data analysis based on the vehicle networking.
Background
The internet of vehicles is an important component for realizing automatic driving and even unmanned driving, is also a core component of a future intelligent transportation system, and will play more and more important roles in the following aspects.
The prior art CN109067842B discloses a calculation task unloading method facing the internet of vehicles, which adopts the calculation resources of the MEC server at the base station side and the calculation resources of the vehicles running on the road to provide an unloading scheme for the calculation tasks of the UE at the roadside; the communication delay, the calculation delay and the processing rate and the queuing length of the calculation processing queue of the task are taken as decision reference factors, the change of the state is analyzed by adopting a Markov decision mathematical model, and an optimization strategy space is obtained by utilizing a deep learning algorithm, namely when the corresponding state adopts corresponding behaviors, the benefit of a resource provider is maximized.
The information disclosed in this background section is only for enhancement of understanding of the general background of the invention and should not be taken as an acknowledgement or any form of suggestion that this information forms the prior art already known to a person skilled in the art.
Disclosure of Invention
The invention aims to provide a passenger information transmission method and system for big data analysis based on the internet of vehicles, which can overcome the defects of the prior art.
In order to achieve the above object, the present invention provides a method for transmitting passenger information for big data analysis based on a vehicle networking, which is characterized in that the method for transmitting passenger information for big data analysis based on a vehicle networking comprises the following steps:
collecting passenger information by the vehicle-mounted mobile terminal;
monitoring basic system information transmitted by a first base station by a vehicle-mounted mobile terminal;
in response to monitoring basic system information transmitted by the first base station, determining, by the vehicle-mounted mobile terminal, an indication of a random access preamble in the basic system information, wherein the indication of the random access preamble at least comprises an indication of a total number of sequences of the random access preamble and an indication of a size of the first set of random access preambles;
in response to determining the indication of the random access preamble in the basic system information, the vehicle-mounted mobile terminal determines whether the total number of sequences of the random access preamble is larger than the size of the first random access preamble set;
if the total number of the sequences of the random access lead codes is larger than the size of the first random access lead code set, the vehicle-mounted mobile terminal determines that the first base station supports the second random access lead code set;
if the first base station supports the second random access preamble set, determining a PRACH resource for sending the random access preamble by the vehicle-mounted mobile terminal, wherein the PRACH resource for sending the random access preamble is indicated in the basic system information, and the indication of the PRACH resource for sending the random access preamble comprises an indication of a subframe number of a subframe for sending the random access preamble;
if the first base station supports the second random access lead code set, the vehicle-mounted mobile terminal judges the quality measurement of a communication link between the vehicle-mounted mobile terminal and the first base station based on a synchronous signal sent by the first base station;
and if the communication link quality metric between the vehicle-mounted mobile terminal and the first base station is judged to be greater than the communication link quality metric threshold, the vehicle-mounted mobile terminal sends a first random access preamble in a second random access preamble set to the first base station in a first resource subset of PRACH resources for sending the random access preambles, wherein the first resource subset only comprises subframes with even subframe numbers for sending the random access preambles, and the communication link quality metric threshold is indicated in the basic system information.
In a preferred embodiment, the method for transmitting the passenger information for big data analysis based on the internet of vehicles comprises the following steps:
in response to receiving the first random access preamble, the first base station sends a first random access response to the vehicle-mounted mobile terminal, wherein the random access response at least comprises an indication of timing advance, a first uplink authorization and a C-RNTI (radio network temporary identifier) allocated to the vehicle-mounted mobile terminal by the first base station;
responding to the received first random access response, and sending a first scheduled message to the first base station by the vehicle-mounted mobile terminal, wherein the first scheduled message at least comprises an RRC connection establishment request message and an identity of the vehicle-mounted mobile terminal;
in response to receiving the first scheduled message, the first base station sends a contention resolution message to the vehicle-mounted mobile terminal, wherein the contention resolution message at least comprises an identity of the vehicle-mounted mobile terminal;
in response to receiving the contention resolution message, transmitting, by the in-vehicle mobile terminal, occupant information to the first base station.
In a preferred embodiment, the method for transmitting the passenger information for big data analysis based on the internet of vehicles comprises the following steps:
if the communication link quality metric between the vehicle-mounted mobile terminal and the first base station is judged to be smaller than the communication link quality metric threshold, the vehicle-mounted mobile terminal sends a second random access lead code in the first random access lead code set to the first base station in a second resource subset of PRACH resources for sending the random access lead code, wherein the second resource subset only comprises subframes with odd subframe numbers for sending the random access lead code, and the communication link quality metric threshold is indicated in basic system information;
transmitting, by the first base station, a second random access response to the in-vehicle mobile terminal in response to receiving the second random access preamble, wherein the random access response includes at least an indication of a timing advance, a second uplink grant and a C-RNTI assigned by the first base station to the in-vehicle mobile terminal, wherein the second uplink grant includes fewer uplink resources than the first uplink grant;
responding to the received second random access response, and sending a second scheduled message to the first base station by the vehicle-mounted mobile terminal, wherein the second scheduled message at least comprises an RRC connection establishment request message and the identity of the vehicle-mounted mobile terminal, and the size of the second scheduled message is smaller than that of the first scheduled message;
in response to receiving the second scheduled message, the first base station sends a contention resolution message to the vehicle-mounted mobile terminal, wherein the contention resolution message at least comprises the identity of the vehicle-mounted mobile terminal;
in response to receiving the contention resolution message, transmitting, by the in-vehicle mobile terminal, occupant information to the first base station.
In a preferred embodiment, the method for transmitting the passenger information for big data analysis based on the internet of vehicles comprises the following steps:
if the total number of the sequences of the random access lead codes is judged to be equal to the size of the first random access lead code set, the vehicle-mounted mobile terminal determines that the first base station does not support the second random access lead code set;
if the first base station does not support the second random access preamble set, determining, by the vehicle-mounted mobile terminal, a PRACH resource for transmitting the random access preamble, wherein the PRACH resource for transmitting the random access preamble is indicated in the basic system information, and the indication of the PRACH resource for transmitting the random access preamble comprises an indication of a subframe number of a subframe for transmitting the random access preamble;
if the first base station does not support the second random access lead code set, the vehicle-mounted mobile terminal does not judge whether the quality measurement of a communication link between the vehicle-mounted mobile terminal and the first base station is greater than a quality measurement threshold of the communication link;
and transmitting, by the vehicle-mounted mobile terminal, a third random access preamble in the first set of random access preambles to the first base station on the PRACH resource for transmitting random access preambles.
In a preferred embodiment, the method for transmitting the passenger information for big data analysis based on the internet of vehicles comprises the following steps:
transmitting, by the first base station, a third random access response to the in-vehicle mobile terminal in response to receiving the third random access preamble, wherein the random access response includes at least an indication of a timing advance, a third uplink grant and a C-RNTI assigned by the first base station to the in-vehicle mobile terminal, and wherein the third uplink grant includes fewer uplink resources than the first uplink grant;
responding to the received third random access response, and sending a third scheduled message to the first base station by the vehicle-mounted mobile terminal, wherein the third scheduled message at least comprises an RRC connection establishment request message and the identity of the vehicle-mounted mobile terminal, and the size of the third scheduled message is smaller than that of the first scheduled message;
in response to receiving the third scheduled message, the first base station sends a contention resolution message to the vehicle-mounted mobile terminal, wherein the contention resolution message at least comprises the identity of the vehicle-mounted mobile terminal;
in response to receiving the contention resolution message, transmitting, by the in-vehicle mobile terminal, occupant information to the first base station.
The invention provides a passenger information transmission system for big data analysis based on the Internet of vehicles, which is characterized by comprising the following steps:
a unit for collecting passenger information by an onboard mobile terminal;
means for monitoring, by the in-vehicle mobile terminal, basic system information transmitted by the first base station;
means for determining, by the in-vehicle mobile terminal, an indication of a random access preamble in the basic system information in response to listening to basic system information transmitted by the first base station, wherein the indication of the random access preamble comprises at least an indication of a total number of sequences of the random access preamble and an indication of a size of the first set of random access preambles;
means for determining, by the in-vehicle mobile terminal, whether a total number of sequences of random access preamble codes is greater than a size of the first set of random access preamble codes in response to determining the indication of random access preamble codes in the basic system information;
means for determining, by the vehicle-mounted mobile terminal, that the first base station supports the second random access preamble set if it is determined that the total number of sequences of the random access preambles is greater than the size of the first random access preamble set;
means for determining, by the vehicle-mounted mobile terminal, a PRACH resource for transmitting the random access preamble if it is determined that the first base station supports the second set of random access preambles, wherein the PRACH resource for transmitting the random access preamble is indicated in the basic system information, wherein the indication of the PRACH resource for transmitting the random access preamble includes an indication of a subframe number of a subframe for transmitting the random access preamble;
means for determining, by the vehicle-mounted mobile terminal, a communication link quality metric between the vehicle-mounted mobile terminal and the first base station based on a synchronization signal sent by the first base station if it is determined that the first base station supports the second random access preamble set;
means for transmitting, by the vehicle-mounted mobile terminal, a first random access preamble in a second set of random access preambles to the first base station in a first resource subset of PRACH resources used for transmitting random access preambles, if it is determined that the communication link quality metric between the vehicle-mounted mobile terminal and the first base station is greater than the communication link quality metric threshold, wherein the first resource subset includes only subframes with even subframe numbers used for transmitting random access preambles, and wherein the communication link quality metric threshold is indicated in the basic system information.
In a preferred embodiment, the passenger information transmission system for big data analysis based on the internet of vehicles comprises:
means for transmitting, by the first base station, a first random access response to the in-vehicle mobile terminal in response to receiving the first random access preamble, wherein the random access response includes at least an indication of a timing advance, a first uplink grant, and a C-RNTI assigned by the first base station to the in-vehicle mobile terminal;
the method comprises the steps that in response to receiving a first random access response, a first scheduled message is sent to a first base station by a vehicle-mounted mobile terminal, wherein the first scheduled message at least comprises an RRC connection establishment request message and an identity of the vehicle-mounted mobile terminal;
means for transmitting, by the first base station, a contention resolution message to the in-vehicle mobile terminal in response to receiving the first scheduled message, wherein the contention resolution message includes at least an identification of the in-vehicle mobile terminal;
means for transmitting, by the in-vehicle mobile terminal, the occupant information to the first base station in response to receiving the contention resolution message.
In a preferred embodiment, the passenger information transmission system for big data analysis based on the internet of vehicles comprises:
means for transmitting, by the vehicle-mounted mobile terminal, a second random access preamble in the first random access preamble set to the first base station in a second resource subset of PRACH resources for transmitting random access preambles to the first base station if it is determined that the communication link quality metric between the vehicle-mounted mobile terminal and the first base station is less than the communication link quality metric threshold, wherein the second resource subset includes only subframes for transmitting random access preambles with an odd subframe number, wherein the communication link quality metric threshold is indicated in the basic system information;
means for transmitting, by the first base station, a second random access response to the in-vehicle mobile terminal in response to receiving the second random access preamble, wherein the random access response includes at least an indication of a timing advance, a second uplink grant and a C-RNTI assigned by the first base station to the in-vehicle mobile terminal, wherein the second uplink grant includes fewer uplink resources than the first uplink grant;
the mobile terminal sends a second scheduled message to the first base station in response to receiving a second random access response, wherein the second scheduled message at least comprises an RRC connection establishment request message and an identity of the mobile terminal, and the size of the second scheduled message is smaller than that of the first scheduled message;
means for transmitting, by the first base station, a contention resolution message to the in-vehicle mobile terminal in response to receiving the second scheduled message, wherein the contention resolution message includes at least an identification of the in-vehicle mobile terminal;
means for transmitting, by the in-vehicle mobile terminal, the occupant information to the first base station in response to receiving the contention resolution message.
In a preferred embodiment, the passenger information transmission system for big data analysis based on the internet of vehicles comprises:
means for determining, by the vehicle mobile terminal, that the first base station does not support the second random access preamble set if it is determined that the total number of sequences of random access preambles is equal to the size of the first random access preamble set;
means for determining, by the vehicle-mounted mobile terminal, a PRACH resource for transmitting the random access preamble if it is determined that the first base station does not support the second random access preamble set, wherein the PRACH resource for transmitting the random access preamble is indicated in the basic system information, wherein the indication of the PRACH resource for transmitting the random access preamble includes an indication of a subframe number of a subframe for transmitting the random access preamble;
means for, if it is determined that the first base station does not support the second random access preamble set, the vehicle-mounted mobile terminal no longer determining whether a communication link quality metric between the vehicle-mounted mobile terminal and the first base station is greater than a communication link quality metric threshold;
means for transmitting, by the in-vehicle mobile terminal, a third random access preamble of the first set of random access preambles to the first base station on the PRACH resource used to transmit the random access preambles.
In a preferred embodiment, the passenger information transmission system for big data analysis based on the internet of vehicles comprises:
means for transmitting, by the first base station, a third random access response to the in-vehicle mobile terminal in response to receiving the third random access preamble, wherein the random access response includes at least an indication of a timing advance, a third uplink grant and a C-RNTI assigned by the first base station to the in-vehicle mobile terminal, wherein the third uplink grant includes fewer uplink resources than the first uplink grant;
the mobile terminal sends a third scheduled message to the first base station in response to receiving a third random access response, wherein the third scheduled message at least comprises an RRC connection establishment request message and an identity of the mobile terminal, and the size of the third scheduled message is smaller than that of the first scheduled message;
means for transmitting, by the first base station, a contention resolution message to the in-vehicle mobile terminal in response to receiving the third scheduled message, wherein the contention resolution message includes at least an identification of the in-vehicle mobile terminal;
means for transmitting, by the in-vehicle mobile terminal, the occupant information to the first base station in response to receiving the contention resolution message.
Compared with the prior art, the invention has the following advantages that the inspection stations are basically arranged at the terminal points of all the current large highways in order to prevent and control epidemic situations or improve the requirement of social security for fighting against crimes. The contradiction is that the closer to the holiday, the greater the inspection force, but the traffic flow in the holiday is often relatively large, so the current vehicle inspection system basically inevitably causes inconvenience for the vehicle owner to go out. In order to alleviate the current contradiction, the inspection speed needs to be increased, and in order to increase the inspection speed, a vehicle network technology needs to be introduced, and the vehicle network technology can realize the inspection while the automobile is driven and the transmission is carried out under the condition that the automobile is not decelerated, so that the throughput of the automobile at the port of the highway is ensured. Aiming at the requirements of the prior art, the application provides a passenger information transmission method and system for big data analysis based on the Internet of vehicles.
Drawings
Fig. 1 is a schematic diagram of a system architecture according to an embodiment of the present invention.
FIG. 2 is a flow diagram of a method according to an embodiment of the invention.
Detailed Description
The following detailed description of the present invention is provided in conjunction with the accompanying drawings, but it should be understood that the scope of the present invention is not limited to the specific embodiments.
Throughout the specification and claims, unless explicitly stated otherwise, the word "comprise", or variations such as "comprises" or "comprising", will be understood to imply the inclusion of a stated element or component but not the exclusion of any other element or component. Although the present application uses the terms "including" and "at least including," it will be understood by those skilled in the art that whether "includes" or "at least includes" should be interpreted as meaning "including at least.
Fig. 1 is a schematic diagram of a system architecture according to an embodiment of the present invention. As shown in the figure, the system of the invention comprises a plurality of vehicle-mounted mobile terminals, the vehicle-mounted mobile terminals can be communicated with a base station, and the base station can send the received data to a vehicle networking center server.
FIG. 2 is a flow diagram of a method according to an embodiment of the invention. As shown in the figure, the method of the present invention comprises the steps of:
step 101: collecting passenger information by the vehicle-mounted mobile terminal;
step 102: monitoring basic system information transmitted by a first base station by a vehicle-mounted mobile terminal;
step 103: in response to monitoring basic system information transmitted by the first base station, determining, by the vehicle-mounted mobile terminal, an indication of a random access preamble in the basic system information, wherein the indication of the random access preamble at least comprises an indication of a total number of sequences of the random access preamble and an indication of a size of the first set of random access preambles; the basic system information refers to information necessary for establishing RRC connection between the mobile terminal and the base station, and currently, some proposals consider that the content in SIB 1 and SIB 2 in the LTE system is the basic system information, and the remaining system information can be used as auxiliary system information.
Step 104: in response to determining the indication of the random access preamble in the basic system information, the vehicle-mounted mobile terminal determines whether the total number of sequences of the random access preamble is larger than the size of the first random access preamble set;
step 105: if the total number of the sequences of the random access lead codes is larger than the size of the first random access lead code set, the vehicle-mounted mobile terminal determines that the first base station supports the second random access lead code set;
step 106: if the first base station supports the second random access preamble set, determining a PRACH resource for sending the random access preamble by the vehicle-mounted mobile terminal, wherein the PRACH resource for sending the random access preamble is indicated in the basic system information, and the indication of the PRACH resource for sending the random access preamble comprises an indication of a subframe number of a subframe for sending the random access preamble;
step 107: if the first base station supports the second random access lead code set, the vehicle-mounted mobile terminal judges the quality measurement of a communication link between the vehicle-mounted mobile terminal and the first base station based on a synchronous signal sent by the first base station; the communication link quality metric may be any metric known in the art, such as RSRP, RSRQ, RSSI, signal-to-noise ratio, signal-to-interference-and-noise ratio, any combination of the foregoing, and the like.
Step 108: and if the communication link quality metric between the vehicle-mounted mobile terminal and the first base station is judged to be greater than the communication link quality metric threshold, the vehicle-mounted mobile terminal sends a first random access preamble in a second random access preamble set to the first base station in a first resource subset of PRACH resources for sending the random access preambles, wherein the first resource subset only comprises subframes with even subframe numbers for sending the random access preambles, and the communication link quality metric threshold is indicated in the basic system information.
In a preferred embodiment, the method for transmitting the passenger information for big data analysis based on the internet of vehicles comprises the following steps:
in response to receiving the first random access preamble, the first base station sends a first random access response to the vehicle-mounted mobile terminal, wherein the random access response at least comprises an indication of timing advance, a first uplink authorization and a C-RNTI (radio network temporary identifier) allocated to the vehicle-mounted mobile terminal by the first base station;
responding to the received first random access response, and sending a first scheduled message to the first base station by the vehicle-mounted mobile terminal, wherein the first scheduled message at least comprises an RRC connection establishment request message and an identity of the vehicle-mounted mobile terminal;
in response to receiving the first scheduled message, the first base station sends a contention resolution message to the vehicle-mounted mobile terminal, wherein the contention resolution message at least comprises an identity of the vehicle-mounted mobile terminal;
in response to receiving the contention resolution message, transmitting, by the in-vehicle mobile terminal, occupant information to the first base station.
In a preferred embodiment, the method for transmitting the passenger information for big data analysis based on the internet of vehicles comprises the following steps:
if the communication link quality metric between the vehicle-mounted mobile terminal and the first base station is judged to be smaller than the communication link quality metric threshold, the vehicle-mounted mobile terminal sends a second random access lead code in the first random access lead code set to the first base station in a second resource subset of PRACH resources for sending the random access lead code, wherein the second resource subset only comprises subframes with odd subframe numbers for sending the random access lead code, and the communication link quality metric threshold is indicated in basic system information;
transmitting, by the first base station, a second random access response to the in-vehicle mobile terminal in response to receiving the second random access preamble, wherein the random access response includes at least an indication of a timing advance, a second uplink grant and a C-RNTI assigned by the first base station to the in-vehicle mobile terminal, wherein the second uplink grant includes fewer uplink resources than the first uplink grant;
responding to the received second random access response, and sending a second scheduled message to the first base station by the vehicle-mounted mobile terminal, wherein the second scheduled message at least comprises an RRC connection establishment request message and the identity of the vehicle-mounted mobile terminal, and the size of the second scheduled message is smaller than that of the first scheduled message; the method for reducing the scheduled message is easily implemented by those skilled in the art through the change of the encoding mode, for example, the transmission speed of useful information can be reduced by reducing the size of the constellation diagram, and then the amount of redundant information is reduced by puncturing (puncturing) the redundant information, thereby reducing the information size; or reduce the information size by reducing the message authentication code length, etc.
In response to receiving the second scheduled message, the first base station sends a contention resolution message to the vehicle-mounted mobile terminal, wherein the contention resolution message at least comprises the identity of the vehicle-mounted mobile terminal;
in response to receiving the contention resolution message, transmitting, by the in-vehicle mobile terminal, occupant information to the first base station.
In a preferred embodiment, the method for transmitting the passenger information for big data analysis based on the internet of vehicles comprises the following steps:
if the total number of the sequences of the random access lead codes is judged to be equal to the size of the first random access lead code set, the vehicle-mounted mobile terminal determines that the first base station does not support the second random access lead code set;
if the first base station does not support the second random access preamble set, determining, by the vehicle-mounted mobile terminal, a PRACH resource for transmitting the random access preamble, wherein the PRACH resource for transmitting the random access preamble is indicated in the basic system information, and the indication of the PRACH resource for transmitting the random access preamble comprises an indication of a subframe number of a subframe for transmitting the random access preamble;
if the first base station does not support the second random access lead code set, the vehicle-mounted mobile terminal does not judge whether the quality measurement of a communication link between the vehicle-mounted mobile terminal and the first base station is greater than a quality measurement threshold of the communication link;
and transmitting, by the vehicle-mounted mobile terminal, a third random access preamble in the first set of random access preambles to the first base station on the PRACH resource for transmitting random access preambles.
In a preferred embodiment, the method for transmitting the passenger information for big data analysis based on the internet of vehicles comprises the following steps:
transmitting, by the first base station, a third random access response to the in-vehicle mobile terminal in response to receiving the third random access preamble, wherein the random access response includes at least an indication of a timing advance, a third uplink grant and a C-RNTI assigned by the first base station to the in-vehicle mobile terminal, and wherein the third uplink grant includes fewer uplink resources than the first uplink grant;
responding to the received third random access response, and sending a third scheduled message to the first base station by the vehicle-mounted mobile terminal, wherein the third scheduled message at least comprises an RRC connection establishment request message and the identity of the vehicle-mounted mobile terminal, and the size of the third scheduled message is smaller than that of the first scheduled message;
in response to receiving the third scheduled message, the first base station sends a contention resolution message to the vehicle-mounted mobile terminal, wherein the contention resolution message at least comprises the identity of the vehicle-mounted mobile terminal;
in response to receiving the contention resolution message, transmitting, by the in-vehicle mobile terminal, occupant information to the first base station.
The invention provides a passenger information transmission system for big data analysis based on the Internet of vehicles, which is characterized by comprising the following steps:
a unit for collecting passenger information by an onboard mobile terminal;
means for monitoring, by the in-vehicle mobile terminal, basic system information transmitted by the first base station;
means for determining, by the in-vehicle mobile terminal, an indication of a random access preamble in the basic system information in response to listening to basic system information transmitted by the first base station, wherein the indication of the random access preamble comprises at least an indication of a total number of sequences of the random access preamble and an indication of a size of the first set of random access preambles;
means for determining, by the in-vehicle mobile terminal, whether a total number of sequences of random access preamble codes is greater than a size of the first set of random access preamble codes in response to determining the indication of random access preamble codes in the basic system information;
means for determining, by the vehicle-mounted mobile terminal, that the first base station supports the second random access preamble set if it is determined that the total number of sequences of the random access preambles is greater than the size of the first random access preamble set;
means for determining, by the vehicle-mounted mobile terminal, a PRACH resource for transmitting the random access preamble if it is determined that the first base station supports the second set of random access preambles, wherein the PRACH resource for transmitting the random access preamble is indicated in the basic system information, wherein the indication of the PRACH resource for transmitting the random access preamble includes an indication of a subframe number of a subframe for transmitting the random access preamble;
means for determining, by the vehicle-mounted mobile terminal, a communication link quality metric between the vehicle-mounted mobile terminal and the first base station based on a synchronization signal sent by the first base station if it is determined that the first base station supports the second random access preamble set;
means for transmitting, by the vehicle-mounted mobile terminal, a first random access preamble in a second set of random access preambles to the first base station in a first resource subset of PRACH resources used for transmitting random access preambles, if it is determined that the communication link quality metric between the vehicle-mounted mobile terminal and the first base station is greater than the communication link quality metric threshold, wherein the first resource subset includes only subframes with even subframe numbers used for transmitting random access preambles, and wherein the communication link quality metric threshold is indicated in the basic system information.
In a preferred embodiment, the passenger information transmission system for big data analysis based on the internet of vehicles comprises:
means for transmitting, by the first base station, a first random access response to the in-vehicle mobile terminal in response to receiving the first random access preamble, wherein the random access response includes at least an indication of a timing advance, a first uplink grant, and a C-RNTI assigned by the first base station to the in-vehicle mobile terminal;
the method comprises the steps that in response to receiving a first random access response, a first scheduled message is sent to a first base station by a vehicle-mounted mobile terminal, wherein the first scheduled message at least comprises an RRC connection establishment request message and an identity of the vehicle-mounted mobile terminal;
means for transmitting, by the first base station, a contention resolution message to the in-vehicle mobile terminal in response to receiving the first scheduled message, wherein the contention resolution message includes at least an identification of the in-vehicle mobile terminal;
means for transmitting, by the in-vehicle mobile terminal, the occupant information to the first base station in response to receiving the contention resolution message.
In a preferred embodiment, the passenger information transmission system for big data analysis based on the internet of vehicles comprises:
means for transmitting, by the vehicle-mounted mobile terminal, a second random access preamble in the first random access preamble set to the first base station in a second resource subset of PRACH resources for transmitting random access preambles to the first base station if it is determined that the communication link quality metric between the vehicle-mounted mobile terminal and the first base station is less than the communication link quality metric threshold, wherein the second resource subset includes only subframes for transmitting random access preambles with an odd subframe number, wherein the communication link quality metric threshold is indicated in the basic system information;
means for transmitting, by the first base station, a second random access response to the in-vehicle mobile terminal in response to receiving the second random access preamble, wherein the random access response includes at least an indication of a timing advance, a second uplink grant and a C-RNTI assigned by the first base station to the in-vehicle mobile terminal, wherein the second uplink grant includes fewer uplink resources than the first uplink grant;
the mobile terminal sends a second scheduled message to the first base station in response to receiving a second random access response, wherein the second scheduled message at least comprises an RRC connection establishment request message and an identity of the mobile terminal, and the size of the second scheduled message is smaller than that of the first scheduled message;
means for transmitting, by the first base station, a contention resolution message to the in-vehicle mobile terminal in response to receiving the second scheduled message, wherein the contention resolution message includes at least an identification of the in-vehicle mobile terminal;
means for transmitting, by the in-vehicle mobile terminal, the occupant information to the first base station in response to receiving the contention resolution message.
In a preferred embodiment, the passenger information transmission system for big data analysis based on the internet of vehicles comprises:
means for determining, by the vehicle mobile terminal, that the first base station does not support the second random access preamble set if it is determined that the total number of sequences of random access preambles is equal to the size of the first random access preamble set;
means for determining, by the vehicle-mounted mobile terminal, a PRACH resource for transmitting the random access preamble if it is determined that the first base station does not support the second random access preamble set, wherein the PRACH resource for transmitting the random access preamble is indicated in the basic system information, wherein the indication of the PRACH resource for transmitting the random access preamble includes an indication of a subframe number of a subframe for transmitting the random access preamble;
means for, if it is determined that the first base station does not support the second random access preamble set, the vehicle-mounted mobile terminal no longer determining whether a communication link quality metric between the vehicle-mounted mobile terminal and the first base station is greater than a communication link quality metric threshold;
means for transmitting, by the in-vehicle mobile terminal, a third random access preamble of the first set of random access preambles to the first base station on the PRACH resource used to transmit the random access preambles.
In a preferred embodiment, the passenger information transmission system for big data analysis based on the internet of vehicles comprises:
means for transmitting, by the first base station, a third random access response to the in-vehicle mobile terminal in response to receiving the third random access preamble, wherein the random access response includes at least an indication of a timing advance, a third uplink grant and a C-RNTI assigned by the first base station to the in-vehicle mobile terminal, wherein the third uplink grant includes fewer uplink resources than the first uplink grant;
the mobile terminal sends a third scheduled message to the first base station in response to receiving a third random access response, wherein the third scheduled message at least comprises an RRC connection establishment request message and an identity of the mobile terminal, and the size of the third scheduled message is smaller than that of the first scheduled message;
means for transmitting, by the first base station, a contention resolution message to the in-vehicle mobile terminal in response to receiving the third scheduled message, wherein the contention resolution message includes at least an identification of the in-vehicle mobile terminal;
means for transmitting, by the in-vehicle mobile terminal, the occupant information to the first base station in response to receiving the contention resolution message.
As will be appreciated by one skilled in the art, embodiments of the present application may be provided as a method, system, or computer program product. Accordingly, the present application may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present application may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, and the like) having computer-usable program code embodied therein.
The present application is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the application. It will be understood that each flow and/or block of the flow diagrams and/or block diagrams, and combinations of flows and/or blocks in the flow diagrams and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
The foregoing descriptions of specific exemplary embodiments of the present invention have been presented for purposes of illustration and description. It is not intended to limit the invention to the precise form disclosed, and obviously many modifications and variations are possible in light of the above teaching. The exemplary embodiments were chosen and described in order to explain certain principles of the invention and its practical application to enable one skilled in the art to make and use various exemplary embodiments of the invention and various alternatives and modifications as are suited to the particular use contemplated. It is intended that the scope of the invention be defined by the claims and their equivalents.

Claims (10)

1. A passenger information transmission method for big data analysis based on the Internet of vehicles is characterized by comprising the following steps:
collecting passenger information by the vehicle-mounted mobile terminal;
monitoring basic system information transmitted by a first base station by a vehicle-mounted mobile terminal;
in response to monitoring basic system information transmitted by a first base station, determining, by an in-vehicle mobile terminal, an indication of a random access preamble in the basic system information, wherein the indication of the random access preamble at least comprises an indication of a total number of sequences of the random access preamble and an indication of a size of a first set of random access preambles;
in response to determining the indication of the random access preamble in the basic system information, determining, by a vehicle-mounted mobile terminal, whether a sequence total number of the random access preamble is greater than a size of the first set of random access preamble;
if the total sequence number of the random access lead codes is judged to be larger than the size of the first random access lead code set, the vehicle-mounted mobile terminal determines that the first base station supports a second random access lead code set;
if the first base station supports the second random access preamble set, determining, by the vehicle-mounted mobile terminal, a PRACH resource for transmitting a random access preamble, where the PRACH resource for transmitting the random access preamble is indicated in the basic system information, and the indication of the PRACH resource for transmitting the random access preamble includes an indication of a subframe number of a subframe for transmitting the random access preamble;
if the first base station supports the second random access lead code set, judging a communication link quality metric between the vehicle-mounted mobile terminal and the first base station by the vehicle-mounted mobile terminal based on a synchronous signal sent by the first base station;
if the communication link quality metric between the vehicle-mounted mobile terminal and the first base station is judged to be greater than a communication link quality metric threshold, the vehicle-mounted mobile terminal sends a first random access preamble in a second random access preamble set to the first base station in a first resource subset of the PRACH resources for sending the random access preambles, wherein the first resource subset only comprises subframes with even subframe numbers for sending the random access preambles, and the communication link quality metric threshold is indicated in the basic system information.
2. The vehicle networking based transmission method for passenger information for big data analysis according to claim 1, comprising the following steps:
transmitting, by a first base station, a first random access response to the vehicular mobile terminal in response to receiving the first random access preamble, wherein the random access response includes at least an indication of a timing advance, a first uplink grant, and a C-RNTI assigned by the first base station to the vehicular mobile terminal;
responding to the received first random access response, and sending a first scheduled message to the first base station by the vehicle-mounted mobile terminal, wherein the first scheduled message at least comprises an RRC connection establishment request message and an identity of the vehicle-mounted mobile terminal;
transmitting, by a first base station, a contention resolution message to the in-vehicle mobile terminal in response to receiving the first scheduled message, wherein the contention resolution message includes at least an identification of the in-vehicle mobile terminal;
transmitting, by a vehicle-mounted mobile terminal, the occupant information to the first base station in response to receiving the contention resolution message.
3. The vehicle networking based transmission method for passenger information for big data analysis according to claim 2, comprising the following steps:
if the communication link quality metric between the vehicle-mounted mobile terminal and the first base station is judged to be smaller than a communication link quality metric threshold, the vehicle-mounted mobile terminal sends a second random access preamble in the first random access preamble set to the first base station in a second resource subset of the PRACH resource for sending the random access preamble, wherein the second resource subset only comprises subframes with odd subframe numbers for sending the random access preamble, and the communication link quality metric threshold is indicated in the basic system information;
transmitting, by the first base station to the in-vehicle mobile terminal, a second random access response in response to receiving the second random access preamble, wherein the random access response includes at least an indication of a timing advance, a second uplink grant including fewer uplink resources than are included in the first uplink grant, and a C-RNTI assigned by the first base station to the in-vehicle mobile terminal;
in response to receiving the second random access response, sending, by the vehicle-mounted mobile terminal, a second scheduled message to the first base station, wherein the second scheduled message at least comprises an RRC connection establishment request message and an identity of the vehicle-mounted mobile terminal, and a size of the second scheduled message is smaller than a size of the first scheduled message;
transmitting, by the first base station, a contention resolution message to the in-vehicle mobile terminal in response to receiving the second scheduled message, wherein the contention resolution message includes at least an identification of the in-vehicle mobile terminal;
transmitting, by a vehicle-mounted mobile terminal, the occupant information to the first base station in response to receiving the contention resolution message.
4. The vehicle networking based transmission method for passenger information for big data analysis according to claim 3, comprising the following steps:
if the total sequence number of the random access lead codes is judged to be equal to the size of the first random access lead code set, the vehicle-mounted mobile terminal determines that the first base station does not support a second random access lead code set;
if the first base station does not support the second random access preamble set, determining, by the vehicle-mounted mobile terminal, a PRACH resource for transmitting a random access preamble, where the PRACH resource for transmitting the random access preamble is indicated in the basic system information, and the indication of the PRACH resource for transmitting the random access preamble includes an indication of a subframe number of a subframe for transmitting the random access preamble;
if the first base station does not support the second random access lead code set, the vehicle-mounted mobile terminal does not judge whether the quality metric of the communication link between the vehicle-mounted mobile terminal and the first base station is greater than the quality metric threshold of the communication link;
and transmitting a third random access preamble in the first random access preamble set to the first base station by the vehicle-mounted mobile terminal on the PRACH resource for transmitting the random access preamble.
5. The vehicle networking based transmission method for passenger information for big data analysis according to claim 4, wherein the vehicle networking based transmission method for passenger information for big data analysis comprises the following steps:
transmitting, by the first base station, a third random access response to the in-vehicle mobile terminal in response to receiving the third random access preamble, wherein the random access response includes at least an indication of a timing advance, a third uplink grant including fewer uplink resources than included in the first uplink grant, and a C-RNTI assigned by the first base station to the in-vehicle mobile terminal;
in response to receiving the third random access response, sending, by an in-vehicle mobile terminal, a third scheduled message to the first base station, wherein the third scheduled message at least includes an RRC connection establishment request message and an identity of the in-vehicle mobile terminal, and a size of the third scheduled message is smaller than a size of the first scheduled message;
transmitting, by the first base station, a contention resolution message to the in-vehicle mobile terminal in response to receiving the third scheduled message, wherein the contention resolution message includes at least an identification of the in-vehicle mobile terminal;
transmitting, by a vehicle-mounted mobile terminal, the occupant information to the first base station in response to receiving the contention resolution message.
6. A passenger information transmission system for big data analysis based on the Internet of vehicles is characterized by comprising:
a unit for collecting passenger information by an onboard mobile terminal;
means for monitoring, by the in-vehicle mobile terminal, basic system information transmitted by the first base station;
means for determining, by an in-vehicle mobile terminal, an indication of a random access preamble in basic system information in response to listening for the basic system information transmitted by a first base station, wherein the indication of the random access preamble comprises at least an indication of a total number of sequences of the random access preamble and an indication of a size of a first set of random access preambles;
means for determining, by an in-vehicle mobile terminal, whether a total number of sequences of random access preamble codes is greater than a size of the first set of random access preamble codes in response to determining the indication of random access preamble codes in the basic system information;
means for determining, by a vehicle mobile terminal, that a second random access preamble set is supported by a first base station if it is determined that the total number of sequences of the random access preamble is greater than the size of the first random access preamble set;
means for determining, by the vehicle-mounted mobile terminal, a PRACH resource for transmitting a random access preamble if it is determined that the first base station supports a second set of random access preambles, wherein the PRACH resource for transmitting the random access preamble is indicated in the basic system information, wherein the indication of the PRACH resource for transmitting the random access preamble includes an indication of a subframe number of a subframe for transmitting the random access preamble;
means for determining, by an in-vehicle mobile terminal, a communication link quality metric between the in-vehicle mobile terminal and a first base station based on a synchronization signal sent by the first base station if it is determined that the first base station supports a second set of random access preambles;
means for transmitting, by the vehicle mobile terminal, a first random access preamble of a second set of random access preambles to the first base station in a first resource subset of the PRACH resources for transmitting random access preambles in the first base station if it is determined that the communication link quality metric between the vehicle mobile terminal and the first base station is greater than a communication link quality metric threshold, wherein the first resource subset includes only subframes for transmitting random access preambles with a subframe number of an even number, and wherein the communication link quality metric threshold is indicated in the basic system information.
7. A vehicle networking based transmission system for passenger information for big data analysis according to claim 6, comprising:
means for transmitting, by a first base station, a first random access response to the vehicular mobile terminal in response to receiving the first random access preamble, wherein the random access response includes at least an indication of a timing advance, a first uplink grant, and a C-RNTI assigned by the first base station to the vehicular mobile terminal;
the mobile terminal sends a first scheduled message to the first base station in response to receiving the first random access response, wherein the first scheduled message at least comprises an RRC connection establishment request message and an identity of the mobile terminal;
means for transmitting, by a first base station, a contention resolution message to the in-vehicle mobile terminal in response to receiving the first scheduled message, wherein the contention resolution message includes at least an identification of the in-vehicle mobile terminal;
means for transmitting, by an in-vehicle mobile terminal, the occupant information to the first base station in response to receiving the contention resolution message.
8. The vehicle networking based transmission system for passenger information for big data analysis according to claim 7, wherein the vehicle networking based transmission system for passenger information for big data analysis comprises:
means for transmitting, by the vehicle-mounted mobile terminal, a second random access preamble of the first set of random access preambles to the first base station in a second resource subset of the PRACH resources for transmitting random access preambles, if it is determined that the communication link quality metric between the vehicle-mounted mobile terminal and the first base station is less than a communication link quality metric threshold, wherein the second resource subset includes only subframes for transmitting random access preambles with an odd subframe number, wherein the communication link quality metric threshold is indicated in the basic system information;
means for transmitting, by a first base station, a second random access response to the in-vehicle mobile terminal in response to receiving the second random access preamble, wherein the random access response includes at least an indication of a timing advance, a second uplink grant including fewer uplink resources than are included in the first uplink grant, and a C-RNTI assigned by the first base station to the in-vehicle mobile terminal;
means for sending, by the vehicle-mounted mobile terminal, a second scheduled message to the first base station in response to receiving the second random access response, wherein the second scheduled message includes at least an RRC connection establishment request message and an identity of the vehicle-mounted mobile terminal, and a size of the second scheduled message is smaller than a size of the first scheduled message;
means for transmitting, by the first base station, a contention resolution message to the in-vehicle mobile terminal in response to receiving the second scheduled message, wherein the contention resolution message includes at least an identification of the in-vehicle mobile terminal;
means for transmitting, by an in-vehicle mobile terminal, the occupant information to the first base station in response to receiving the contention resolution message.
9. The internet of vehicles based transmission system of occupant information for big data analysis according to claim 8, wherein the internet of vehicles based transmission system of occupant information for big data analysis comprises:
means for determining, by a vehicle mobile terminal, that the first base station does not support a second set of random access preambles if it is determined that the total number of sequences of the random access preambles is equal to the size of the first set of random access preambles;
means for determining, by the vehicle-mounted mobile terminal, a PRACH resource for transmitting a random access preamble if it is determined that the first base station does not support the second set of random access preambles, wherein the PRACH resource for transmitting the random access preamble is indicated in the basic system information, wherein the indication of the PRACH resource for transmitting the random access preamble includes an indication of a subframe number of a subframe for transmitting the random access preamble;
means for, if it is determined that the first base station does not support the second random access preamble set, the vehicle-mounted mobile terminal no longer determining whether a communication link quality metric between the vehicle-mounted mobile terminal and the first base station is greater than a communication link quality metric threshold;
means for transmitting, by an in-vehicle mobile terminal, a third random access preamble of a first set of random access preambles to the first base station on the PRACH resource for transmitting random access preambles.
10. A vehicle networking based transmission system for occupant information for big data analysis according to claim 9, wherein the vehicle networking based transmission system for occupant information for big data analysis comprises:
means for transmitting, by the first base station, a third random access response to the vehicular mobile terminal in response to receiving the third random access preamble, wherein the random access response includes at least an indication of a timing advance, a third uplink grant including fewer uplink resources than included in the first uplink grant, and a C-RNTI assigned by the first base station to the vehicular mobile terminal;
means for sending, by an in-vehicle mobile terminal, a third scheduled message to the first base station in response to receiving the third random access response, wherein the third scheduled message includes at least an RRC connection establishment request message and an identity of the in-vehicle mobile terminal, and a size of the third scheduled message is smaller than a size of the first scheduled message;
means for transmitting, by the first base station, a contention resolution message to the in-vehicle mobile terminal in response to receiving the third scheduled message, wherein the contention resolution message includes at least an identification of the in-vehicle mobile terminal;
means for transmitting, by an in-vehicle mobile terminal, the occupant information to the first base station in response to receiving the contention resolution message.
CN202010599306.9A 2020-06-28 2020-06-28 Passenger information transmission method and system for big data analysis based on Internet of vehicles Active CN111710060B (en)

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