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Vehicle networking information accelerated transmission method, vehicle terminal and base station
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A transmission method and Internet of Vehicles technology, which is applied in vehicle terminals and base stations, and in the field of accelerated transmission of Internet of Vehicles information, can solve problems such as inability to meet delay requirements, and achieve the effects of improving resource utilization, reliable transmission, and fast transmission
Inactive Publication Date: 2021-03-30
SHANGHAI RES CENT FOR WIRELESS COMM
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However, through the above analysis, we can see that for some emergency safety information that the delay specified in SAE J2735 standard should be less than 10ms, scheduling-based information transmission may not be able to meet such stringent delay requirements
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no. 1 example
[0043] Such as Figure 4 , Figure 5 and Figure 6 As shown, the specific process of the vehicle terminal side in the first embodiment is as follows:
[0044] Step 1: The vehicle terminal generates burst information
[0045] During the driving of the vehicle, if an emergency occurs in a certain vehicle, such as a vehicle collision accident. At this time, a burst emergency safety warning message will be generated on the vehicle terminal, hereinafter referred to as burst message (Burst-MSG). It is assumed that the priority of this burst message is higher than that of the regular message (Common-MSG) that has pre-allocated SPS resources.
[0046] Step 2: Generate new resource request information and send it to the base station
[0047] If the vehicle terminal judges that it needs to use SPS resources to transmit burst information according to the current situation, it generates new resource request information and sends a request to the base station, requesting the base stat...
no. 2 example
[0073] As an alternative solution: if the reserved SPS resource for transmitting regular information is used, the resource request information carrying the burst information can meet the transmission delay of the burst information, and at the same time, there is an SPS resource that can carry the resource request in the reserved SPS resource. resources (for example, the padding bits of the conventional information are sufficient to carry the resource request information), then the conventional information can carry the resource request and send it to the network side.
[0074] Combine below Figure 8 ~ Figure 10 , specifically explain the differences from the first embodiment.
[0075] Step 22A, judging whether the SPS resources meet the requirements
[0076] Such as Figure 8 As shown, in this embodiment, the vehicle terminal judges whether the redundant bits of the SPS resources pre-allocated for regular information are sufficient to carry the burst information resource re...
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Abstract
The invention discloses an internet of vehicles information accelerated transmission method, a vehicle terminal and a base station. The method comprises the following steps: the vehicle terminal produces burst information; the vehicle terminal generates new resource request information and sends to the base station; the base station processes the new resource request information, and distributes a new resource for the burst information; the vehicle terminal sends a burst data packet by use of the new resource, wherein the new resource request information is sent to the base station through a resource pre-distributed to conventional information. By use of the transmission method disclosed by the invention, the fast transmission and reliable transmission of the burst security information can be realized, and the resource utilization rate is improved.
Description
technical field [0001] The invention relates to a method for accelerated transmission of information of the Internet of Vehicles, and also relates to a vehicle terminal and a base station for realizing accelerated transmission of information of the Internet of Vehicles, belonging to the technical field of the Internet of Vehicles. Background technique [0002] Vehicle to everything (V2X for short) includes V2V (vehicle-vehicle communication), V2I (vehicle-road communication) and V2P (vehicle-pedestrian communication), etc., which can realize intelligent traffic management, intelligent dynamic information service and The integrated network of vehicle intelligent control is also a typical application of Internet of Things technology in the field of transportation system. Currently, there are mainly two standards in the technical field of V2X communication: DSRC (Dedicated Short-Range Communication Technology) and LTE-V2X. The former specifies the communication system architec...
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