# US 11,310,640 B2 · Method for vehicle-to-vehicle communication > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 11,310,640 B2 - Document ID: US11310640B2 - Status: Granted - Kind: B2 - Application number: 16/795,331 - Filed: 2020-02-19 - Published: 2020-08-20 - Granted: 2022-04-19 - Earliest claimed: 2019-02-20 - Assignees: Volkswagen Aktiengesellschaft - Applicants: Volkswagen Aktiengesellschaft - Inventors: Daniel Reimann; Guillaume Jornod; Andreas Pfadler - Web page: https://patentgrep.com/patent/US11310640B2 ## CPC - H04W 4/46: for vehicle-to-vehicle communication [V2V] - G08G 1/0112: {from the vehicle, e.g. floating car data [FCD]} - G08G 1/0125: {Traffic data processing} - G08G 1/0145: {for active traffic flow control} - G08G 1/056: with provision for distinguishing direction of travel - G08G 1/096708: {where the received information might be used to generate an automatic action on the vehicle control} - G08G 1/096741: {where the source of the transmitted information selects which information to transmit to each vehicle} - G08G 1/096791: {where the origin of the information is another vehicle} - G08G 1/163: {involving continuous checking} - H04B 7/0413: MIMO systems - H04B 7/0626: {Channel coefficients, e.g. channel state information [CSI]} - H04B 7/086: {using weights depending on external parameters, e.g. direction of arrival [DOA], predetermined weights or beamforming} - H04B 17/373: Predicting channel quality {or other radio frequency [RF]} parameters - H04L 1/0026: {Transmission of channel quality indication} - H04L 43/0882: Utilisation of link capacity - H04L 47/127: by using congestion prediction - H04W 4/02: Services making use of location information - H04W 4/021: Services related to particular areas, e.g. point of interest [POI] services, venue services or geofences - H04W 4/023: {using mutual or relative location information between multiple location based services [LBS] targets or of distance thresholds} - H04W 4/027: {using movement velocity, acceleration information} - H04W 4/40: for vehicles, e.g. vehicle-to-pedestrians [V2P] - H04W 4/44: for communication between vehicles and infrastructures, e.g. vehicle-to-cloud [V2C] or vehicle-to-home [V2H] - H04W 16/28: using beam steering - H04W 24/08: Testing, {supervising or monitoring} using real traffic - H04W 24/10: Scheduling measurement reports {; Arrangements for measurement reports} - H04W 28/0273: {adapting protocols for flow control or congestion control to wireless environment, e.g. adapting transmission control protocol [TCP] (wireless network protocols or protocol adaptations to wireless operation, e.g. wireless application protocol H04W80/00)} - H04W 28/0284: {detecting congestion or overload during communication (monitoring arrangements H04L43/00)} - H04W 64/006: {with additional information processing, e.g. for direction or speed determination} - H04W 72/542: using measured or perceived quality - H04L 1/0033: {arrangements specific to the transmitter} - H04L 1/0036: {arrangements specific to the receiver} - H04W 28/0268: {using specific QoS parameters for wireless networks, e.g. QoS class identifier [QCI] or guaranteed bit rate [GBR] (negotiating SLA or negotiating QoS H04W28/24)} - H04W 72/02: Selection of wireless resources by user or terminal - H04W: WIRELESS COMMUNICATION NETWORKS (broadcast communication H04H; communication systems using wireless links for non-selective communication, e.g. wireless extensions H04M1/72) - G08G: TRAFFIC CONTROL SYSTEMS (guiding railway traffic, ensuring the safety of railway traffic B61L; arrangement of road signs or traffic signals E01F9/00; radar or analogous systems, sonar systems, lidar systems specially adapted for traffic control G01S13/91, G01S15/88, G01S17/88; {radar or analogous systems, sonar systems, lidar systems specially adapted for anti-collision purposes G01S13/93, G01S15/93, G01S17/93}) - H04B: TRANSMISSION - H04L: TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION (arrangements common to telegraphic and telephonic communication H04M) ## Abstract A method for Vehicle-2-Vehicle communication of a transportation vehicle that enables the transportation vehicle to selectively forward a message concerning channel quality received from another transportation vehicle based on detection of channel quality of the transportation vehicle. A first transportation vehicle receives a first message from a second transportation vehicle including first channel quality information (CQI) related to a first position indicated in the message; compares the first CQI with a second CQI related to a second position, wherein the second CQI is determined by the first transportation vehicle; and selectively transmits a second message having the first CQI and/or the second CQI to a third transportation vehicle based on the comparison of the first CQI and the second CQI. ## Claims ### Claim 1 A first transportation vehicle comprising a communication module to communicate with a second transportation vehicle and with a station of a communication network; and a control unit configured to: receive, within a transmission area of the second transportation vehicle, a message comprising first channel quality information (CQI) related to a first position; compare the received first CQI with a second CQI related to a second position, wherein the second CQI is determined by the first transportation vehicle, and wherein the second position is identical to the first position or within a predetermined range about the first position; and selectively transmit a message comprising the first CQI to a third transportation vehicle based on the comparison of the first CQI and the second CQI, the selection comprising determining a difference between the first CQI and the second CQI relative to a first predetermined CQI threshold, selectively transmit a message comprising the second CQI to the third transportation vehicle based on the comparison of the first CQI and the second CQI, the selection comprising determining a difference between the first CQI and the second CQI relative to a second predetermined CQI threshold. ### Claim 2 A method of a first transportation vehicle for vehicle-to-vehicle (V2V) communication, the method comprising: receiving, within a transmission area of the second transportation vehicle, a first message from a second transportation vehicle comprising first channel quality information (CQI) related to a first position indicated in the message; comparing the first CQI with a second CQI related to a second position, wherein the second CQI is determined by the first transportation vehicle; and wherein the second position is identical to the first position or within a predetermined range about the first position, wherein the first transportation vehicle transmits the first CQI to a third transportation vehicle in response to a difference between the first CQI and the second CQI being below a first predetermined CQI threshold and wherein the first transportation vehicle transmits the second CQI to the third transportation vehicle in response to a difference between the first CQI and the second CQI being below a second predetermined CQI threshold. ### Claim 3 (depends on 2) The method of claim 2, wherein the first transportation vehicle does not transmit the first CQI or the second CQI to the third transportation vehicle in response to a difference between the first CQI and the second CQI being above a predetermined CQI threshold. ### Claim 4 (depends on 2) The method of claim 2, wherein the predetermined range is indicated in the first message or determined based on a propagation direction and a velocity for the first position and/or based on an identifier of at least one other transportation vehicle associated with the first position and/or the first CQI. ### Claim 5 (depends on 4) The method of claim 4, wherein the first transportation vehicle transmits the second CQI corresponding to the first CQI in response to the second position being outside the predetermined range. ### Claim 6 (depends on 2) The method of claim 2, wherein the first message indicates that the first CQI relates to a channel load of above 80% of channel capacity. ### Claim 7 (depends on 2) The method of claim 2, wherein the first message and/or the second message is one of a shared channel quality (SCQ) message and/or a cooperative communication message (CCM). ### Claim 8 (depends on 2) The method of claim 2, wherein the first transportation vehicle does not transmit the first CQI and/or the second CQI to the third transportation vehicle in response to a distance between an actual position of the first transportation vehicle and the first position and/or the second position exceeds a predetermined distance threshold. ### Claim 9 (depends on 2) The method of claim 2, wherein the first transportation vehicle transmits the first CQI and/or the second CQI to the third transportation vehicle in response to the third transportation vehicle being outside of a transmission area of the second transportation vehicle. ### Claim 10 (depends on 2) The method of claim 2, wherein the first transportation vehicle does not transmit the first CQI in response to the first transportation vehicle not determining a second CQI. ### Claim 11 A non-transitory computer readable medium including a computer program comprising instructions which, when the program is executed by a control unit of a transportation vehicle, cause the control unit to carry out a method of a first transportation vehicle for vehicle-to-vehicle (V2V) communication with a second transportation vehicle, the method comprising: receiving, within a transmission area of the second transportation vehicle, a first message from a second transportation vehicle comprising first channel quality information (CQI) related to a first position indicated in the message; comparing the first CQI with a second CQI related to a second position, wherein the second CQI is determined by the first transportation vehicle; and selectively transmitting a second message comprising the first CQI to a third transportation vehicle based on the comparison of the first CQI and the second CQI, the selection comprising determining a difference between the first COI and the second COI relative to a first predetermined COI threshold, selectively transmitting a third message comprising the second COI to the third transportation vehicle based on the comparison of the first COI and the second COI, the selection comprising determining a difference between the first COI and the second COI relative to a second predetermined COI threshold, wherein the second position is identical to the first position or within a predetermined range about the first position. ### Claim 12 A non-transitory computer readable medium including a computer program comprising instructions which, when the program is executed by a control unit of a first transportation vehicle, cause the control unit to carry out a method of a second transportation vehicle for vehicle-to-vehicle (V2V) communication, the method comprising: determining first channel quality information (CQI) related to a first position; and transmitting a first message to a first transportation vehicle within a transmission area of the second transportation vehicle, the first message comprising the first CQI, wherein the second transportation vehicle transmits the first message in response to the second transportation vehicle and/or the first transportation vehicle being within a predetermined distance threshold about the first position, transmitting the first CQI to a third transportation vehicle in response to a difference between the first CQI and a second CQI being below a first predetermined CQI threshold and transmitting the second CQI to the third transportation vehicle in response to a difference between the first CQI and the second CQI being below a second predetermined CQI threshold. ### Claim 13 A method for communication between a first, a second, and a third transportation vehicle, for vehicle-to-vehicle (V2V) communication, the method comprising: determining first channel quality information (CQI) related to a first position; and transmitting a first message to a first transportation vehicle within a transmission area of the second transportation vehicle, the first message comprising the first CQI, wherein the second transportation vehicle transmits the first message in response to the second transportation vehicle and/or the first transportation vehicle being within a predetermined distance threshold about the first position, wherein the first transportation vehicle transmits the first CQI to a third transportation vehicle in response to a difference between the first CQI and a second CQI being below a first predetermined CQI threshold, and wherein the first transportation vehicle transmits the second CQI to the third transportation vehicle in response to a difference between the first CQI and the second CQI being below a second predetermined CQI threshold.