# US 2021/0243556 A1 · Cooperative event warning system > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2021/0243556 A1 - Document ID: US20210243556A1 - Status: Published application - Kind: A1 - Application number: 17/160,267 - Filed: 2021-01-27 - Published: 2021-08-05 - Earliest claimed: 2020-01-31 - Assignees: QUALCOMM Incorporated - Applicants: QUALCOMM Incorporated - Inventors: Anantharaman Balasubramanian; Kapil Gulati; Sudhir Kumar Baghel; Taesang Yoo; Shailesh Patil - Web page: https://patentgrep.com/patent/US20210243556A1 ## CPC - H04L 65/1069: Session establishment or de-establishment - H04W 4/023: {using mutual or relative location information between multiple location based services [LBS] targets or of distance thresholds} - G01S 5/0072: {Transmission between mobile stations, e.g. anti-collision systems} - G08G 1/005: including pedestrian guidance indicator - G08G 1/163: {involving continuous checking} - G08G 1/165: {for passive traffic, e.g. including static obstacles, trees} - G08G 1/166: {for active traffic, e.g. moving vehicles, pedestrians, bikes} - H04W 4/025: {using location based information parameters} - H04W 4/027: {using movement velocity, acceleration information} - H04W 4/40: for vehicles, e.g. vehicle-to-pedestrians [V2P] - H04W 4/90: Services for handling of emergency or hazardous situations, e.g. earthquake and tsunami warning systems [ETWS] - H04W 64/006: {with additional information processing, e.g. for direction or speed determination} - H04W 4/06: Selective distribution of broadcast services, e.g. multimedia broadcast multicast service [MBMS]; Services to user groups; One-way selective calling services - H04L: TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION (arrangements common to telegraphic and telephonic communication H04M) - H04W: WIRELESS COMMUNICATION NETWORKS (broadcast communication H04H; communication systems using wireless links for non-selective communication, e.g. wireless extensions H04M1/72) - G01S: RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES - 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}) ## Abstract Methods, systems, and devices for wireless communications are described. A first wireless device may receive situational information for a second wireless device over a first communication link between the first wireless device and the second wireless device and situational information for a third wireless device over a second communication link between the first wireless device and the third wireless device. The first wireless device may transmit message with guidance information to the second wireless device on behalf of the third wireless device and based on the second wireless device and the third wireless device having an event likelihood above a threshold. The event likelihood may be based on the situational information for the second wireless device and the situational information for the third wireless device. ## Claims ### Claim 1 A method for wireless communication, comprising: receiving, at a first wireless device, situational information for a second wireless device over a first communication link between the first wireless device and the second wireless device and situational information for a third wireless device over a second communication link between the first wireless device and the third wireless device; and transmitting a message comprising guidance information to the second wireless device on behalf of the third wireless device and based at least in part on the second wireless device and the third wireless device having an event likelihood above a threshold, wherein the event likelihood is based at least in part on the situational information for the second wireless device and the situational information for the third wireless device. ### Claim 2 (depends on 1) The method of claim 1, wherein the situational information indicates a yaw, a pitch, a roll angle, a position, a velocity, a direction, an acceleration, a change in yaw, a change in roll angle, a change in position, a change in velocity, a change in direction, a change in acceleration, or a combination thereof. ### Claim 3 (depends on 1) The method of claim 1, wherein the event likelihood comprises an impact likelihood. ### Claim 4 (depends on 1) The method of claim 1, wherein the guidance information comprises an indication of a possible impact, an indication of an action to avoid a possible impact, or a combination thereof. ### Claim 5 (depends on 1) The method of claim 1, further comprising: determining a direction for the second wireless device to avoid for a duration of time, wherein the guidance information comprises an indication of the direction and the duration of time; determining an adjustment to a velocity of the second wireless device, wherein the guidance information comprises an indication of the adjustment; or determining an adjustment to a heading angle of the second wireless device, wherein the guidance information comprises an indication of the adjustment. ### Claim 6 (depends on 1) The method of claim 1, further comprising: determining a route for the second wireless device to take to prevent an impact with the third wireless device based at least in part on the situational information for the second wireless device and the third wireless device, wherein the guidance information comprises an indication of the route. ### Claim 7 (depends on 1) The method of claim 1, further comprising: determining a route of the third wireless device based at least in part on the situational information for the third wireless device, wherein the guidance information comprises an indication of the route. ### Claim 8 (depends on 1) The method of claim 1, further comprising: transmitting a second message comprising different guidance information to the third wireless device based at least in part on determining that the second wireless device and the third wireless device have the event likelihood above the threshold. ### Claim 9 (depends on 1) The method of claim 1, further comprising: receiving from the second wireless device an indication of a period of time the second wireless device is able to receive communications; and transmitting the guidance information to the second wireless device during the period of time. ### Claim 10 (depends on 1) The method of claim 1, further comprising: determining that the second wireless device is unaware of the third wireless device, wherein the guidance information is transmitted based at least in part on determining that the second wireless device is unaware of the third wireless device. ### Claim 11 (depends on 1) The method of claim 1, further comprising: determining that the first wireless device is on an impact-free course with respect to the second wireless device, wherein the guidance information is transmitted after determining that the first wireless device is on the impact-free course. ### Claim 12 (depends on 1) The method of claim 1, wherein the first wireless device and the second wireless device are moving asynchronously or have a difference in velocity greater than a threshold velocity. ### Claim 13 A method for wireless communication, comprising: transmitting, by a first wireless device, situational information for the first wireless device to a second wireless device over a communication link between the first wireless device and the second wireless device; receiving, from the second wireless device over the communication link, a message comprising guidance information that indicates the first wireless device and a third wireless device have an event likelihood above a threshold; and outputting a signal to prompt a change in behavior based at least in part on the guidance information. ### Claim 14 (depends on 13) The method of claim 13, wherein the situational information indicates a yaw, a pitch, a roll angle, a position, a velocity, a direction, an acceleration, a change in yaw, a change in roll angle, a change in position, a change in velocity, a change in direction, a change in acceleration, or a combination thereof. ### Claim 15 (depends on 13) The method of claim 13, wherein the change in behavior comprises a change in yaw, a change in pitch, a change in roll angle, a change in velocity, a change in direction, a change in acceleration, outputting an alert signal, or a combination thereof. ### Claim 16 (depends on 13) The method of claim 13, wherein the signal is communicated to a vehicle coupled with the first wireless device, a person coupled with the first wireless device, the second wireless device, the third wireless device, or a combination thereof, and wherein the change in behavior comprises a change by the vehicle coupled with the first wireless device, a change by the person coupled with the first wireless device, a change by the second wireless device, a change by the third wireless device, or a combination thereof. ### Claim 17 (depends on 13) The method of claim 13, wherein the guidance information comprises a direction for the first wireless device to avoid for a duration of time, an adjustment to a heading angle of the second wireless device, an adjustment to a velocity of the second wireless device, situational information for the third wireless device, or a combination thereof. ### Claim 18 (depends on 13) The method of claim 13, wherein the signal comprises a visual, auditory, or tactile signal detectable by a human or an electrical signal detectable by an electronic device. ### Claim 19 (depends on 13) The method of claim 13, further comprising: determining that a fourth wireless device within a threshold distance of the first wireless device is traveling in a same direction or to a same destination as the first wireless device; and transmitting the guidance information to the fourth wireless device. ### Claim 20 (depends on 13) The method of claim 13, wherein the guidance information is received while the first wireless device is out of communication range with the third wireless device, the method further comprising: determining that the first wireless device is in communication range of the third wireless device, wherein communicating with the third wireless device is based at least in part on determining that the first wireless device is in communication range of the third wireless device. ### Claim 21 A method for wireless communication, comprising: receiving, at a first wireless device, situational information for a second wireless device from a third wireless device; and transmitting a message comprising guidance information to the second wireless device based at least in part on the first wireless device and the second wireless device having an event likelihood above a threshold, wherein the event likelihood is based at least in part on a route of the second wireless device, and wherein the route of the second wireless device is based at least in part on the situational information for the second wireless device. ### Claim 22 (depends on 21) The method of claim 21, further comprising: determining additional situational information for the second wireless device based at least in part on information from one or more sensors coupled with the first wireless device, wherein the event likelihood is determined based at least in part on the additional situational information for the second wireless device. ### Claim 23 (depends on 22) The method of claim 22, further comprising: transmitting the additional situational information for the second wireless device to the third wireless device, wherein the route of the second wireless device is determined cooperatively with the third wireless device. ### Claim 24 (depends on 21) The method of claim 21, further comprising: receiving additional situational information for the second wireless device from the second wireless device, wherein the route of the second wireless device is determined based at least in part on the additional situational information for the second wireless device. ### Claim 25 (depends on 21) The method of claim 21, wherein the situational information comprises a location of the second wireless device within an image frame, one or more coordinates of the second wireless device, a heading angle of the second wireless device, a body position of a user of the second wireless device, or a combination thereof. ### Claim 26 A method for wireless communication, comprising: receiving, at a first wireless device, surroundings information from a second wireless device over a link between the first wireless device and the second wireless device; and transmitting a message comprising guidance information to a third wireless device based at least in part on the third wireless device having an event likelihood above a threshold, wherein the event likelihood is based at least in part on the surroundings information from the second wireless device. ### Claim 27 (depends on 26) The method of claim 26, wherein the surroundings information indicates an object, a road condition, or a combination thereof. ### Claim 28 (depends on 26) The method claim 26, wherein the event likelihood comprises a likelihood that the second wireless device passes within a threshold distance of an object or road condition. ### Claim 29 (depends on 26) The method of claim 26, wherein the guidance information indicates a location of an object, a location of a road condition, or a combination thereof. ### Claim 30 (depends on 26) The method of claim 26, wherein the guidance information indicates one or more actions the second wireless device can take to reduce the event likelihood.