US20150326462 illustrates a LTE-based vehicular communication system connecting a base station and vehicles equipped with mobile communication devices. The LTE-based vehicular communication system coordinates packet transmissions of vehicles to improve road safety and traffic efficiency: vehicles to exchange information among each other to support various applications such as collision avoidance or cooperative adaptive cruise control. The LTE-based vehicular communication system enables vehicles communicate with roadside infrastructures to attain useful information such as roadwork warning, weather warning, or information about available parking in a city

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LTE-based Vehicle and Drone Networks Insights from Patents
Alex G. Lee (alexglee@techipm.com)
https://www.linkedin.com/today/author/2853055
US20150326462 illustrates a LTE-based vehicular communication system connecting a base station and vehicles
equipped with mobile communication devices. The LTE-based vehicular communication system coordinates
packet transmissions of vehicles to improve road safety and traffic efficiency: vehicles to exchange information
among each other to support various applications such as collision avoidance or cooperative adaptive cruise control.
The LTE-based vehicular communication system enables vehicles communicate with roadsideinfrastructures to
attain useful information such as roadwork warning, weather warning, or information aboutavailable parking in a
city
An important aspectof the LTE-based vehicular networking is that there is no direct communication link among
vehicles at the lower communication protocollayer (PHY/MAC layer) such as in the case of WLAN-based
vehicular networks (e.g., V2V via 802.11p DSRC). Rather, vehicles have to use multiple network elements at
higher communication protocollayer (e.g. RRC layer) to relay data. The LTE-based vehicular communication
system uses a new network element that serves as a message reflector to facilitate the communication among

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vehicles. This network element functions as a server for the vehicles and road infrastructure, i.e., it processes
incoming messages from vehicles and road infrastructures and redistributes these messages to them. Since this
server is typically responsible for a geographical area, it is termed GeoServer. The main functionality of the
GeoServer is to provide vehicles with geographical-related services such as safety related services.

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An important application message in vehicular communication is the cooperative awareness message (CAM). This
message is periodically broadcastbyeach vehicle and contains the vehicle's status such as vehicle's position, speed,
and heading. This message allows a vehicle to be aware of others in its surrounding. Using the periodic CAM
messages received from others, a vehicle can detect potential collisions with other vehicles in its vicinity. The rate
at which CAMs are sent needs to be carefully chosento avoid network congestion and minimize the latency of
message passing. The LTE-based vehicular communication system can effectively prevent the network congestion
from occurring by performing measurements related to the current packet transmission characteristics and by
adapting the transmission rate on the basis of respective feedback information. The LTE-based vehicular
communication system can also significantly reduce the latency for data exchange between vehicles by
implementing a feedback-based scheme for a centralized coordinator and vehicles to coordinate with each other a
transmission rate for messages.

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US20160012393 illustrates a parcel delivery system using a drone (unmanned aerial vehicle (UAV)) exploiting the
LTE communication network. The parcel delivery system includes a server, a drone, a sender terminal and a
recipient terminal associated with and carried by a sender and a recipient respectively connected to the LTE
communication network. The drone and recipient terminal continuously generate and transmit the geographic
position information to the server via the LTE communication network. After receipt of a delivery request for the
parcel from the sender terminal via the LTE communication network, the server transmits the destination
information and delivery flight path, which has been previously determined based on the recipient and drone
geographic position information, to the drone via the LTE communication network. The drone transports, based on
the destination information and delivery flight path, the parcel to an unloading position where the recipient
terminal is located. Upon arrival at the unloading position, the drone notifies the server of delivery completion via
the LTE communication network. After unloading of the parcel from the drone, the recipient terminal notifies the
server of reception confirmation via the LTE communication network. After receipt of the notifications of delivery
completion and reception confirmation, the server notifies the sender terminal of successfuldelivery via the LTE
communication network.

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US20150379874 illustrates a parcel delivery system using a drone exploiting the LTE communication network that
further includes a drone platform. The drone platform selects a particular a drone, from the drones in the pool,
based on the scores and the rankings for the drones in the pooland based on the required drone capabilities for the
flight path. While the selected drone is traversing the flight path, the LTE communication network receives
feedback from the selected drone regarding the flight path (e.g., about changing conditions, such as speed, weather
conditions, duration, etc.).