CN111639980A

CN111639980A - Precise advertisement putting method and system based on Internet of vehicles

Info

Publication number: CN111639980A
Application number: CN202010541388.1A
Authority: CN
Inventors: 刘丽琼; 薛庆平
Original assignee: Henan Institute of Technology
Current assignee: Henan Institute of Technology
Priority date: 2020-06-15
Filing date: 2020-06-15
Publication date: 2020-09-08

Abstract

The invention discloses an accurate advertisement putting method based on the Internet of vehicles, which comprises the following steps: collecting the portrait information of the vehicle owner by the vehicle-mounted mobile terminal; monitoring system information and a synchronous signal sent by a base station by a vehicle-mounted mobile terminal; in response to receiving the system information and the synchronization signal, the vehicle-mounted mobile terminal judges whether the base station is a 4G base station or a 5G base station; if the base station is judged to be a 4G base station, the vehicle-mounted mobile terminal sends a random access lead code to the base station on the PRACH resource; in response to sending the random access preamble to the base station, attempting, by the in-vehicle mobile terminal, to receive a random access response at a random access response receiving window; if the random access response is not received in the random access response receiving window, the mobile terminal sends the random access preamble to the base station again after the random access response receiving window; in response to re-transmitting the random access preamble to the base station, the first counter is updated again by the in-vehicle mobile terminal to record the number of times the random access preamble is transmitted.

Description

Precise advertisement putting method and system based on Internet of vehicles

Technical Field

The invention relates to the technical field of Internet of vehicles, in particular to an accurate advertisement putting method and an accurate advertisement putting system based on the Internet of vehicles.

Background

The car networking realizes the all-round network link of car and cloud platform, car and car, car and road, car and people, car interior through the information communication technology of new generation, has mainly realized "three nets merge", namely fuses car intranet, intercar network and on-vehicle mobile internet. The car networking senses the state information of the vehicles by using a sensing technology, and realizes intelligent management of traffic, intelligent decision of traffic information service and intelligent control of the vehicles by using a wireless communication network and a modern intelligent information processing technology.

Prior art CN105430081A discloses an advertisement push method based on internet of vehicles radio station, which includes: converting the accessed mobile network wireless signals into WIFI wireless signals of a wireless local area network, allowing a plurality of wireless terminals to simultaneously share the mobile wireless network, and accessing the Internet; reading the vehicle state and maintenance information by using an OBD communication mode, and uploading the vehicle state and maintenance information to an advertisement publishing platform by using a mobile communication mode; and matching the purchased goods and services required by vehicle maintenance with the goods and services in the advertisement publishing platform, and pushing the advertisement audio of the goods and services with matching degree to a playlist of the network radio station.

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 an accurate advertisement putting method and an accurate advertisement putting system based on the Internet of vehicles, which can overcome the defects of the prior art.

In order to achieve the purpose, the invention provides an accurate advertisement putting method based on the Internet of vehicles, which comprises the following steps: collecting the portrait information of the vehicle owner by the vehicle-mounted mobile terminal; monitoring system information and a synchronous signal sent by a base station by a vehicle-mounted mobile terminal; in response to receiving the system information and the synchronization signal, the vehicle-mounted mobile terminal judges whether the base station is a 4G base station or a 5G base station; if the base station is judged to be a 4G base station, the vehicle-mounted mobile terminal sends a random access lead code to the base station on PRACH resources, wherein the PRACH resources are indicated in the system information; updating, by the in-vehicle mobile terminal, a first counter to record a number of times the random access preamble is transmitted in response to transmitting the random access preamble to the base station; attempting, by the in-vehicle mobile terminal, to receive a random access response in a random access response receiving window in response to transmitting the random access preamble to the base station, wherein the random access response is transmitted by the base station in response to receiving the random access preamble, and wherein the random access response includes at least the temporary C-RNTI, the uplink grant, and the timing advance indication; if the random access response is not received in the random access response receiving window, the mobile terminal sends the random access preamble to the base station again after the random access response receiving window; in response to re-sending the random access preamble to the base station, the first counter is updated again by the vehicle-mounted mobile terminal to record the number of times the random access preamble is sent; in response to the random access preamble being retransmitted to the base station, the vehicle-mounted mobile terminal attempts to receive a random access response in a random access response receiving window, wherein the random access response at least comprises a temporary C-RNTI, an uplink authorization and a timing advance indication; if the random access response is received in the random access response receiving window, the vehicle-mounted mobile terminal sends a third message to the base station on the resource indicated by the uplink authorization included in the random access response, wherein the third message comprises a request message for establishing RRC connection and a temporary C-RNTI; in response to transmitting the third message to the base station, starting, by the in-vehicle mobile terminal, a contention resolution timer, wherein an expiration time of the contention resolution timer is indicated in the system information.

In a preferred embodiment, the method for accurate advertisement delivery based on internet of vehicles comprises the following steps: attempting, by the in-vehicle mobile terminal, to receive a contention resolution message in response to transmitting the third message to the base station, wherein the contention resolution message is transmitted by the base station in response to receiving the third message; if the vehicle-mounted mobile terminal receives the contention resolution message, decoding the contention resolution message by the vehicle-mounted mobile terminal; stopping the contention resolution timer by the vehicle-mounted mobile terminal if the contention resolution message includes the temporary C-RNTI sent to the base station by the vehicle-mounted mobile terminal; in response to the fact that the contention resolution message comprises the temporary C-RNTI sent to the base station by the vehicle-mounted mobile terminal, the vehicle-mounted mobile terminal sends vehicle owner portrait information and a random access report to the base station, wherein the random access report comprises counting information in the first timer; transmitting, by the base station, the owner image information to an advertisement provider server in response to receiving the owner image information; generating, by an advertisement provider server, advertisement information based on the owner figure information, and transmitting, by the advertisement provider server, the generated advertisement information to the base station; and responding to the received advertisement information, and sending the advertisement information to the vehicle-mounted mobile terminal by the base station.

In a preferred embodiment, the method for accurate advertisement delivery based on internet of vehicles comprises the following steps: updating, by the in-vehicle mobile terminal, the second timer to record a number of contention failures if the in-vehicle mobile terminal has not received the contention resolution message before the contention resolution timer times out; in response to the contention resolution timer expiring, retransmitting, by the in-vehicle mobile terminal, the random access preamble to the base station; updating, by the in-vehicle mobile terminal, a first counter to record a number of times the random access preamble is transmitted in response to transmitting the random access preamble to the base station; if the vehicle-mounted mobile terminal receives the contention resolution message, decoding the contention resolution message by the vehicle-mounted mobile terminal; if the contention resolution message does not include the temporary C-RNTI sent to the base station by the vehicle-mounted mobile terminal, the vehicle-mounted mobile terminal does not stop the contention resolution timer; updating, by the in-vehicle mobile terminal, the second timer to record a number of contention failures if the in-vehicle mobile terminal has not received the contention resolution message before the contention resolution timer times out; in response to the contention resolution timer expiring, retransmitting, by the in-vehicle mobile terminal, the random access preamble to the base station; and in response to the random access preamble code being sent to the base station, the vehicle-mounted mobile terminal updates the first counter to record the number of times of sending the random access preamble code, wherein the counting information in the second timer is also included in the random access report.

In a preferred embodiment, the method for accurate advertisement delivery based on internet of vehicles comprises the following steps: if the base station is judged to be a 5G base station, the vehicle-mounted mobile terminal sends a random access lead code to the base station by using a first beam on PRACH resources, wherein the PRACH resources are indicated in the system information; updating, by the in-vehicle mobile terminal, a first counter to record a number of times the random access preamble is transmitted in response to transmitting the random access preamble to the base station; attempting, by the in-vehicle mobile terminal, to receive a random access response in a random access response receiving window in response to transmitting the random access preamble to the base station, wherein the random access response is transmitted by the base station in response to receiving the random access preamble, and wherein the random access response includes at least the temporary C-RNTI, the uplink grant, and the timing advance indication; transmitting, by the mobile terminal, a random access preamble to the base station using the second beam after the random access response reception window if the random access response is not received in the random access response reception window; in response to transmitting the random access preamble to the base station using the second beam, updating, by the in-vehicle mobile terminal, the first counter again to record the number of times the random access preamble is transmitted; in response to the random access preamble being retransmitted to the base station, the vehicle-mounted mobile terminal attempts to receive a random access response in a random access response receiving window, wherein the random access response at least comprises a temporary C-RNTI, an uplink authorization and a timing advance indication; if the random access response is received in the random access response receiving window, the vehicle-mounted mobile terminal sends a third message to the base station by using a second wave beam on the resource indicated by the uplink authorization included in the random access response, wherein the third message comprises a request message for establishing RRC connection and a temporary C-RNTI; starting, by the in-vehicle mobile terminal, a contention resolution timer in response to transmitting the third message to the base station using the second beam, wherein an expiration time of the contention resolution timer is indicated in the system information.

In a preferred embodiment, the method for accurate advertisement delivery based on internet of vehicles comprises the following steps: attempting, by the in-vehicle mobile terminal, to receive a contention resolution message in response to transmitting a third message to the base station using the second beam, wherein the contention resolution message is transmitted by the base station in response to receiving the third message; if the vehicle-mounted mobile terminal receives the contention resolution message, decoding the contention resolution message by the vehicle-mounted mobile terminal; stopping the contention resolution timer by the vehicle-mounted mobile terminal if the contention resolution message includes the temporary C-RNTI sent to the base station by the vehicle-mounted mobile terminal; in response to the fact that the contention resolution message comprises the temporary C-RNTI sent to the base station by the vehicle-mounted mobile terminal, the vehicle-mounted mobile terminal sends vehicle owner portrait information and a random access report to the base station, wherein the random access report comprises counting information in the first timer; transmitting, by the base station, the owner image information to an advertisement provider server in response to receiving the owner image information; generating, by an advertisement provider server, advertisement information based on the owner figure information, and transmitting, by the advertisement provider server, the generated advertisement information to the base station; and responding to the received advertisement information, and sending the advertisement information to the vehicle-mounted mobile terminal by the base station.

The invention also provides an accurate advertisement delivery system based on the Internet of vehicles, which comprises: a unit for collecting vehicle owner portrait information by a vehicle-mounted mobile terminal; a unit for monitoring system information and a synchronization signal transmitted by a base station by a vehicle-mounted mobile terminal; a unit for judging whether the base station is a 4G base station or a 5G base station by the in-vehicle mobile terminal in response to receiving the system information and the synchronization signal; means for transmitting, by the vehicle-mounted mobile terminal, a random access preamble to the base station on a PRACH resource if it is determined that the base station is a 4G base station, wherein the PRACH resource is indicated in the system information; means for updating, by the in-vehicle mobile terminal, a first counter to record a number of times the random access preamble is transmitted in response to transmitting the random access preamble to the base station; means for attempting, by the in-vehicle mobile terminal, to receive a random access response at a random access response receive window in response to transmitting the random access preamble to the base station, wherein the random access response is transmitted by the base station in response to receiving the random access preamble, wherein the random access response includes at least the temporary C-RNTI, the uplink grant, and the timing advance indication; means for retransmitting, by the mobile terminal, the random access preamble to the base station after the random access response reception window if the random access response is not received in the random access response reception window; means for updating, by the in-vehicle mobile terminal, the first counter again to record a number of times the random access preamble is transmitted in response to resending the random access preamble to the base station; means for attempting, by the in-vehicle mobile terminal, to receive a random access response at a random access response receive window in response to re-transmitting the random access preamble to the base station, wherein the random access response includes at least the temporary C-RNTI, the uplink grant, and the timing advance indication; means for transmitting, by the in-vehicle mobile terminal, a third message to the base station on a resource indicated by an uplink grant included in the random access response if the random access response is received in a random access response reception window, wherein the third message includes a request message for establishing an RRC connection and a temporary C-RNTI; means for starting, by the in-vehicle mobile terminal, a contention resolution timer in response to transmitting the third message to the base station, wherein an expiration time of the contention resolution timer is indicated in the system information.

In a preferred embodiment, the precise advertisement delivery system based on the internet of vehicles comprises: means for attempting, by the in-vehicle mobile terminal, to receive a contention resolution message in response to transmitting the third message to the base station, wherein the contention resolution message is transmitted by the base station in response to receiving the third message; means for decoding, by the in-vehicle mobile terminal, the contention resolution message if the in-vehicle mobile terminal receives the contention resolution message; means for stopping, by the in-vehicle mobile terminal, the contention resolution timer if the temporary C-RNTI sent by the in-vehicle mobile terminal to the base station is included in the contention resolution message; a unit for responding to the temporary C-RNTI sent to the base station by the vehicle-mounted mobile terminal in the contention resolution message, and sending the vehicle owner portrait information and a random access report to the base station by the vehicle-mounted mobile terminal, wherein the random access report comprises counting information in a first timer; a unit for transmitting, by the base station, the vehicle owner representation information to an advertisement provider server in response to receiving the vehicle owner representation information; a unit for generating advertisement information based on the owner figure information by an advertisement provider server and transmitting the generated advertisement information to the base station by the advertisement provider server; and means for transmitting, by the base station, the advertisement information to the in-vehicle mobile terminal in response to receiving the advertisement information.

In a preferred embodiment, the precise advertisement delivery system based on the internet of vehicles comprises: means for updating, by the in-vehicle mobile terminal, the second timer to record a number of contention failures if the in-vehicle mobile terminal has not received the contention resolution message before the contention resolution timer times out; means for retransmitting, by the in-vehicle mobile terminal, the random access preamble to the base station in response to the contention resolution timer expiring; means for updating, by the in-vehicle mobile terminal, a first counter to record a number of times the random access preamble is transmitted in response to transmitting the random access preamble to the base station; means for decoding, by the in-vehicle mobile terminal, the contention resolution message if the in-vehicle mobile terminal receives the contention resolution message; means for not stopping the contention resolution timer by the in-vehicle mobile terminal if the temporary C-RNTI sent by the in-vehicle mobile terminal to the base station is not included in the contention resolution message; means for updating, by the in-vehicle mobile terminal, the second timer to record a number of contention failures if the in-vehicle mobile terminal has not received the contention resolution message before the contention resolution timer times out; means for retransmitting, by the in-vehicle mobile terminal, the random access preamble to the base station in response to the contention resolution timer expiring; and updating, by the vehicle-mounted mobile terminal, the first counter to record the number of times the random access preamble is transmitted in response to transmitting the random access preamble to the base station, wherein the counting information in the second timer is also included in the random access report.

In a preferred embodiment, the precise advertisement delivery system based on the internet of vehicles comprises: means for transmitting, by the vehicle-mounted mobile terminal, a random access preamble to the base station using a first beam on a PRACH resource indicated in the system information if it is determined that the base station is a 5G base station; means for updating, by the in-vehicle mobile terminal, a first counter to record a number of times the random access preamble is transmitted in response to transmitting the random access preamble to the base station; means for attempting, by the in-vehicle mobile terminal, to receive a random access response at a random access response receive window in response to transmitting the random access preamble to the base station, wherein the random access response is transmitted by the base station in response to receiving the random access preamble, wherein the random access response includes at least the temporary C-RNTI, the uplink grant, and the timing advance indication; means for transmitting, by the mobile terminal, a random access preamble to the base station using a second beam after the random access response reception window if the random access response is not received in the random access response reception window; means for updating, by the in-vehicle mobile terminal, the first counter again to record a number of times the random access preamble is transmitted in response to transmitting the random access preamble to the base station using the second beam; means for attempting, by the in-vehicle mobile terminal, to receive a random access response at a random access response receive window in response to re-transmitting the random access preamble to the base station, wherein the random access response includes at least the temporary C-RNTI, the uplink grant, and the timing advance indication; means for transmitting, by the in-vehicle mobile terminal, a third message to the base station using the second beam on a resource indicated by the uplink grant included in the random access response if the random access response is received in the random access response reception window, wherein the third message includes a request message to establish the RRC connection and the temporary C-RNTI; means for starting, by the in-vehicle mobile terminal, a contention resolution timer in response to transmitting the third message to the base station using the second beam, wherein an expiration time of the contention resolution timer is indicated in the system information.

In a preferred embodiment, the precise advertisement delivery system based on the internet of vehicles comprises: means for attempting, by the in-vehicle mobile terminal, to receive a contention resolution message in response to transmitting a third message to the base station using the second beam, wherein the contention resolution message is transmitted by the base station in response to receiving the third message; means for decoding, by the in-vehicle mobile terminal, the contention resolution message if the in-vehicle mobile terminal receives the contention resolution message; means for stopping, by the in-vehicle mobile terminal, the contention resolution timer if the temporary C-RNTI sent by the in-vehicle mobile terminal to the base station is included in the contention resolution message; a unit for responding to the temporary C-RNTI sent to the base station by the vehicle-mounted mobile terminal in the contention resolution message, and sending the vehicle owner portrait information and a random access report to the base station by the vehicle-mounted mobile terminal, wherein the random access report comprises counting information in a first timer; a unit for transmitting, by the base station, the vehicle owner representation information to an advertisement provider server in response to receiving the vehicle owner representation information; a unit for generating advertisement information based on the owner figure information by an advertisement provider server and transmitting the generated advertisement information to the base station by the advertisement provider server; and means for transmitting, by the base station, the advertisement information to the in-vehicle mobile terminal in response to receiving the advertisement information.

Compared with the prior art, the invention has the following advantages: generally, the difficulty of advertisement propagation is that the directivity of advertisement propagation is not strong, and since the directivity is low, in order to expand the influence of advertisement, it is necessary to increase the coverage of advertisement in a large range, and to increase the advertisement propagation effect by covering a wider range, as a result, the advertisement propagation cost is high, and the high-cost advertisement propagation will cause the shortage of research and development investment of enterprises, thereby causing the product update of enterprises not fast enough, and even causing the product to be eliminated by the market. The advertisement propaganda cost can be greatly reduced by improving the advertisement delivery accuracy, in order to improve the advertisement delivery accuracy, accurate delivery is certainly an effective method by obtaining user requirements through big data analysis, but some users may work busy and the time for using a mobile phone is possibly very limited, and for the users, the simple advertisement delivery based on the user requirements cannot ensure that the users can see related propaganda. The invention provides a method for accurately delivering advertisements and ensuring that users can see related propaganda, and based on the needs of the prior art, the invention provides an accurate advertisement delivery method and system based on the Internet of vehicles.

Drawings

Fig. 1 is a flowchart of a method for accurate advertisement delivery based on internet of vehicles according to an embodiment of the present 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.

FIG. 1 is a flow diagram of a method according to an embodiment of the invention. As shown in the figure, the accurate advertisement putting method based on the Internet of vehicles comprises the following steps:

step 101: collecting the portrait information of the vehicle owner by the vehicle-mounted mobile terminal; the owner profile information includes, for example, owner age, gender, educational background, shopping habits, etc., and generally, any information related to the owner and affecting the advertisement delivery may be referred to as owner profile information;

step 102: monitoring system information and a synchronous signal sent by a base station by a vehicle-mounted mobile terminal;

step 103: in response to receiving the system information and the synchronization signal, the vehicle-mounted mobile terminal judges whether the base station is a 4G base station or a 5G base station;

step 104: if the base station is judged to be a 4G base station, the vehicle-mounted mobile terminal sends a random access lead code to the base station on PRACH resources, wherein the PRACH resources are indicated in the system information;

step 105: updating, by the in-vehicle mobile terminal, a first counter to record a number of times the random access preamble is transmitted in response to transmitting the random access preamble to the base station;

step 106: attempting, by the in-vehicle mobile terminal, to receive a random access response in a random access response receiving window in response to transmitting the random access preamble to the base station, wherein the random access response is transmitted by the base station in response to receiving the random access preamble, and wherein the random access response includes at least the temporary C-RNTI, the uplink grant, and the timing advance indication;

step 107: if the random access response is not received in the random access response receiving window, the mobile terminal sends the random access preamble to the base station again after the random access response receiving window;

step 108: in response to re-sending the random access preamble to the base station, the first counter is updated again by the vehicle-mounted mobile terminal to record the number of times the random access preamble is sent;

step 109: in response to the random access preamble being retransmitted to the base station, the vehicle-mounted mobile terminal attempts to receive a random access response in a random access response receiving window, wherein the random access response at least comprises a temporary C-RNTI, an uplink authorization and a timing advance indication;

step 110: if the random access response is received in the random access response receiving window, the vehicle-mounted mobile terminal sends a third message to the base station on the resource indicated by the uplink authorization included in the random access response, wherein the third message comprises a request message for establishing RRC connection and a temporary C-RNTI;

step 111: in response to transmitting the third message to the base station, starting, by the in-vehicle mobile terminal, a contention resolution timer, wherein an expiration time of the contention resolution timer is indicated in the system information.

In a preferred embodiment, the method for accurate advertisement delivery based on internet of vehicles comprises the following steps: attempting, by the in-vehicle mobile terminal, to receive a contention resolution message in response to transmitting a third message to the base station using the second beam, wherein the contention resolution message is transmitted by the base station in response to receiving the third message; if the vehicle-mounted mobile terminal receives the contention resolution message, decoding the contention resolution message by the vehicle-mounted mobile terminal; stopping the contention resolution timer by the vehicle-mounted mobile terminal if the contention resolution message includes the temporary C-RNTI sent to the base station by the vehicle-mounted mobile terminal; in response to the fact that the contention resolution message comprises the temporary C-RNTI sent to the base station by the vehicle-mounted mobile terminal, the vehicle-mounted mobile terminal sends vehicle owner portrait information and a random access report to the base station, wherein the random access report comprises counting information in the first timer; transmitting, by the base station, the owner image information to an advertisement provider server in response to receiving the owner image information; generating, by an advertisement provider server, advertisement information based on the owner figure information, and transmitting, by the advertisement provider server, the generated advertisement information to the base station; and responding to the received advertisement information, and sending the advertisement information to the vehicle-mounted mobile terminal by the base station. The beam switching needs to be based on beam forming and antenna array technology, which is the prior art, and is not described in detail herein.

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

1. The accurate advertisement putting method based on the Internet of vehicles is characterized by comprising the following steps of:

collecting the portrait information of the vehicle owner by the vehicle-mounted mobile terminal;

monitoring system information and a synchronous signal sent by a base station by a vehicle-mounted mobile terminal;

in response to receiving the system information and the synchronization signal, judging whether the base station is a 4G base station or a 5G base station by the vehicle-mounted mobile terminal;

if the base station is judged to be a 4G base station, a vehicle-mounted mobile terminal sends a random access lead code to the base station on PRACH resources, wherein the PRACH resources are indicated in the system information;

updating, by the in-vehicle mobile terminal, a first counter to record a number of times the random access preamble is transmitted in response to transmitting the random access preamble to the base station;

attempting, by a vehicle-mounted mobile terminal, to receive a random access response at a random access response reception window in response to transmitting a random access preamble to the base station, wherein the random access response is transmitted by the base station in response to receiving the random access preamble, and wherein the random access response includes at least a temporary C-RNTI, an uplink grant, and a timing advance indication;

if the random access response is not received in the random access response receiving window, the mobile terminal sends the random access preamble to the base station again after the random access response receiving window;

in response to re-sending the random access preamble to the base station, updating, by the vehicle-mounted mobile terminal, the first counter again to record the number of times the random access preamble is sent;

in response to re-transmitting the random access preamble to the base station, the vehicle-mounted mobile terminal attempts to receive a random access response in a random access response receiving window, wherein the random access response at least comprises a temporary C-RNTI, an uplink authorization and a timing advance indication;

if a random access response is received in a random access response receiving window, the vehicle-mounted mobile terminal sends a third message to the base station on the resource indicated by the uplink authorization included in the random access response, wherein the third message comprises a request message for establishing RRC connection and a temporary C-RNTI;

starting, by the in-vehicle mobile terminal, a contention resolution timer in response to transmitting the third message to the base station, wherein a timeout time of the contention resolution timer is indicated in the system information.

2. The Internet of vehicles based accurate advertisement delivery method according to claim 1, wherein the Internet of vehicles based accurate advertisement delivery method comprises the steps of:

attempting, by the in-vehicle mobile terminal, to receive a contention resolution message in response to transmitting the third message to the base station, wherein the contention resolution message is transmitted by the base station in response to receiving the third message;

decoding, by the vehicle-mounted mobile terminal, the contention resolution message if the vehicle-mounted mobile terminal receives the contention resolution message;

stopping the contention resolution timer by the vehicle-mounted mobile terminal if the contention resolution message includes the temporary C-RNTI sent to the base station by the vehicle-mounted mobile terminal;

in response to the fact that the contention resolution message comprises the temporary C-RNTI sent to the base station by the vehicle-mounted mobile terminal, the vehicle-mounted mobile terminal sends the vehicle owner portrait information and a random access report to the base station, wherein the random access report comprises counting information in the first timer;

transmitting, by a base station, the vehicle owner representation information to an advertisement provider server in response to receiving the vehicle owner representation information;

generating, by an advertisement provider server, advertisement information based on the owner figure information, and transmitting, by the advertisement provider server, the generated advertisement information to the base station;

and responding to the received advertisement information, and sending the advertisement information to the vehicle-mounted mobile terminal by the base station.

3. The Internet of vehicles based accurate advertisement delivery method according to claim 2, wherein the Internet of vehicles based accurate advertisement delivery method comprises the steps of:

updating, by the in-vehicle mobile terminal, a second timer to record a number of contention failures if the in-vehicle mobile terminal has not received the contention resolution message before the contention resolution timer times out;

re-transmitting, by the in-vehicle mobile terminal, a random access preamble to the base station in response to the contention resolution timer expiring;

if the contention resolution message does not include the temporary C-RNTI sent to the base station by the vehicle-mounted mobile terminal, the vehicle-mounted mobile terminal does not stop the contention resolution timer;

and in response to the random access preamble code being sent to the base station, updating a first counter by the vehicle-mounted mobile terminal to record the number of times of sending the random access preamble code, wherein the counting information in the second timer is also included in the random access report.

4. The Internet of vehicles based accurate advertisement delivery method according to claim 3, wherein the Internet of vehicles based accurate advertisement delivery method comprises the following steps:

if the base station is judged to be a 5G base station, a first wave beam is used on PRACH resources by the vehicle-mounted mobile terminal to send a random access lead code to the base station, wherein the PRACH resources are indicated in the system information;

transmitting, by the mobile terminal, a random access preamble to the base station using a second beam after the random access response reception window if the random access response is not received in the random access response reception window;

in response to transmitting a random access preamble to the base station using the second beam, updating, by the in-vehicle mobile terminal, the first counter again to record the number of times the random access preamble is transmitted;

if a random access response is received in a random access response receiving window, the vehicle-mounted mobile terminal sends a third message to the base station by using a second wave beam on the resource indicated by the uplink authorization included in the random access response, wherein the third message comprises a request message for establishing RRC connection and a temporary C-RNTI;

starting, by the in-vehicle mobile terminal, a contention resolution timer in response to transmitting the third message to the base station using the second beam, wherein a timeout time of the contention resolution timer is indicated in the system information.

5. The Internet of vehicles based accurate advertisement delivery method according to claim 4, wherein the Internet of vehicles based accurate advertisement delivery method comprises the following steps:

attempting, by the in-vehicle mobile terminal, to receive a contention resolution message in response to transmitting a third message to the base station using a second beam, wherein the contention resolution message is transmitted by the base station in response to receiving the third message;

6. The utility model provides an accurate advertisement delivery system based on car networking which characterized in that, accurate advertisement delivery system based on car networking includes:

a unit for collecting vehicle owner portrait information by a vehicle-mounted mobile terminal;

a unit for monitoring system information and a synchronization signal transmitted by a base station by a vehicle-mounted mobile terminal;

means for determining, by the in-vehicle mobile terminal, whether the base station is a 4G base station or a 5G base station in response to receiving the system information and the synchronization signal;

means for transmitting, by a vehicle-mounted mobile terminal, a random access preamble to the base station on a PRACH resource if it is determined that the base station is a 4G base station, wherein the PRACH resource is indicated in the system information;

means for updating, by an in-vehicle mobile terminal, a first counter to record a number of times a random access preamble is transmitted in response to transmitting the random access preamble to the base station;

means for attempting, by an in-vehicle mobile terminal, to receive a random access response at a random access response receive window in response to transmitting a random access preamble to the base station, wherein the random access response is transmitted by the base station in response to receiving the random access preamble, wherein the random access response includes at least a temporary C-RNTI, an uplink grant, and a timing advance indication;

means for retransmitting, by the mobile terminal, a random access preamble to the base station after a random access response reception window if the random access response is not received in the random access response reception window;

means for updating, by the in-vehicle mobile terminal, the first counter again to record a number of times the random access preamble is transmitted in response to resending the random access preamble to the base station;

means for attempting, by an in-vehicle mobile terminal, to receive a random access response at a random access response receive window in response to resending a random access preamble to the base station, wherein the random access response includes at least a temporary C-RNTI, an uplink grant, and a timing advance indication;

means for transmitting, by the in-vehicle mobile terminal, a third message to the base station on a resource indicated by an uplink grant included in the random access response if the random access response is received in a random access response reception window, wherein the third message includes a request message for establishing an RRC connection and a temporary C-RNTI;

means for starting, by the in-vehicle mobile terminal, a contention resolution timer in response to transmitting the third message to the base station, wherein a timeout time of the contention resolution timer is indicated in the system information.

7. The Internet of vehicles based accurate advertisement delivery system according to claim 6, wherein the Internet of vehicles based accurate advertisement delivery system comprises:

means for attempting, by an in-vehicle mobile terminal, to receive a contention resolution message in response to transmitting a third message to the base station, wherein the contention resolution message is transmitted by the base station in response to receiving the third message;

means for decoding, by the in-vehicle mobile terminal, the contention resolution message if the in-vehicle mobile terminal receives the contention resolution message;

means for stopping, by the in-vehicle mobile terminal, the contention resolution timer if the contention resolution message includes a temporary C-RNTI sent by the in-vehicle mobile terminal to the base station;

a unit, configured to respond to a determination that the contention resolution message includes a temporary C-RNTI sent to the base station by the vehicle-mounted mobile terminal, and send the owner profile information and a random access report to the base station by the vehicle-mounted mobile terminal, where the random access report includes count information in the first timer;

means for transmitting, by a base station, the vehicle owner representation information to an advertisement provider server in response to receiving the vehicle owner representation information;

a unit for generating advertisement information based on the owner figure information by an advertisement provider server, and transmitting the generated advertisement information to the base station by the advertisement provider server;

means for transmitting, by a base station, the advertisement information to the in-vehicle mobile terminal in response to receiving the advertisement information.

8. The Internet of vehicles based accurate advertisement delivery system according to claim 7, wherein the Internet of vehicles based accurate advertisement delivery system comprises:

means for updating, by the in-vehicle mobile terminal, a second timer to record a number of contention failures if the in-vehicle mobile terminal has not received the contention resolution message before the contention resolution timer times out;

means for retransmitting, by an in-vehicle mobile terminal, a random access preamble to the base station in response to the contention resolution timer expiring;

means for the in-vehicle mobile terminal not stopping the contention resolution timer if the temporary C-RNTI sent by the in-vehicle mobile terminal to the base station is not included in the contention resolution message;

means for updating, by the in-vehicle mobile terminal, a first counter to record a number of times a random access preamble is transmitted in response to transmitting the random access preamble to the base station, wherein the count information in the second timer is also included in the random access report.

9. The Internet of vehicles based accurate advertisement delivery system according to claim 8, wherein the Internet of vehicles based accurate advertisement delivery system comprises:

means for transmitting, by an in-vehicle mobile terminal, a random access preamble to a base station using a first beam on a PRACH resource indicated in the system information if it is determined that the base station is a 5G base station;

means for transmitting, by the mobile terminal, a random access preamble to the base station using a second beam after a random access response reception window if the random access response is not received in the random access response reception window;

means for updating, by the in-vehicle mobile terminal, the first counter again to record a number of times the random access preamble is transmitted in response to transmitting the random access preamble to the base station using the second beam;

means for transmitting, by the in-vehicle mobile terminal, a third message to the base station using a second beam on a resource indicated by an uplink grant included in the random access response if the random access response is received in a random access response reception window, wherein the third message includes a request message for establishing an RRC connection and a temporary C-RNTI;

means for starting, by the in-vehicle mobile terminal, a contention resolution timer in response to transmitting the third message to the base station using the second beam, wherein a timeout time of the contention resolution timer is indicated in the system information.

10. The internet of vehicles based accurate advertisement delivery system of claim 9, comprising:

means for attempting, by an in-vehicle mobile terminal, to receive a contention resolution message in response to transmitting a third message to the base station using a second beam, wherein the contention resolution message is transmitted by the base station in response to receiving the third message;