# US 2021/0243666 A1 · Method and system for localization-based data connectivity transitioning > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2021/0243666 A1 - Document ID: US20210243666A1 - Status: Published application - Kind: A1 - Application number: 17/238,119 - Filed: 2021-04-22 - Published: 2021-08-05 - Earliest claimed: 2018-09-20 - Assignees: Mapsted Corp. - Inventors: Sean Huberman; Majid Bavand - Web page: https://patentgrep.com/patent/US20210243666A1 ## CPC - H04W 4/02: Services making use of location information - H04W 4/025: {using location based information parameters} - G01S 5/02521: {using a radio-map} - G01S 5/02585: {at least one of the measurements being a non-radio measurement} - H04W 36/08: Reselecting an access point - H04W 36/322: {by location data} - H04W 4/33: for indoor environments, e.g. buildings - 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 ## Abstract A method and a system of maintaining data connectivity between a mobile device during traversal of a pedestrian facility and a server computing device via a set of intermediary communication devices. The method, executed in a processor of the server device, comprises while the mobile device is in data connectivity via a first intermediary communication device, receiving an indication that the mobile device is localized to a position between a first and a second intermediary communication devices of the set of intermediary communication devices, based on an inertial sensor device including at least one of a gyroscope, an accelerometer and the magnetometer, determining a directional heading of the mobile device, inferring, based on the directional heading, at least one of an unobstructed line of sight wireless signal transmission path to the second intermediary communication device, and a more obstructed line of sight wireless signal transmission path to the first intermediary communication device, and based on the inferring, maintaining the data connectivity with the mobile device by switching from the first intermediary communication device to the second intermediary communication device. ## Claims ### Claim 1 A method of minimizing signal interference and distortions between a mobile device traversing a pedestrian facility and a server computing device, the method executed in a processor of the server computing device and comprising: accessing localization information including coordinate positions of the mobile device while in data connectivity with the mobile device via a first access point device from the set of access point device, the position of the mobile device being closer to the first access point device than the position of the mobile device to a second access point device from the set of access point device; while the mobile device is in data connectivity via the first access point device, receiving a request from the mobile device to transition to the second access point device; determining a directional heading of the mobile device, based on an inertial sensor device of the mobile device; inferring, based on the directional heading, at least one of a physically unobstructed line of sight wireless signal transmission path to the second access point device, and a more physically obstructed line of sight wireless signal transmission path to the first access point device; and based on the inferring, minimizing the signal interference and distortions caused by a mobile device-carrying user by switching from a spatially closer access point device to a spatially farther access point device, the spatially closer access point device being the first access point device and the spatially farther access point device being the second access point device, wherein, while traversing the pedestrian facility, the mobile device faces the second access point device and the first access point is behind the mobile device. ### Claim 2 (depends on 1) The method of claim 1, wherein switching from the spatially closer access point device to the spatially farther access point device includes establishing a bi-directional data transmission between the server computing device and the second access point device. ### Claim 3 (depends on 1) The method of claim 1, wherein an obstruction in a line of sight wireless signal transmission path is based on a manner in which the mobile device-carrying user carries the mobile device. ### Claim 4 (depends on 1) The method of claim 1, wherein the physically unobstructed line of sight wireless signal transmission path being inferred when a user of the mobile device faces the second access point device and the physically obstructed line of sight wireless signal transmission path being inferred when the first access device is behind the user ### Claim 5 (depends on 1) The method of claim 1, wherein the method further comprises providing coordinate placement information of the set of access point devices within the pedestrian facility to the mobile device to identify an access point device for switching. ### Claim 6 (depends on 1) The method of claim 1, wherein the localization information indicates that the mobile device is localized to a position between the first access point devices and the second access point devices of the set of access point device. ### Claim 7 (depends on 1) The method of claim 1, wherein the pedestrian facility is one of a shopping mall, an airport facility, a warehouse, a college building, an office building, a sports arena and an at least partially enclosed building. ### Claim 8 (depends on 1) The method of claim 1, wherein the mobile device is localized based on at least one of a mobile device orientation, a magnetic field strength and direction, a received wireless communication signal strength, a wireless connectivity indication and a barometric pressure in accordance with fingerprint data of the pedestrian facility. ### Claim 9 (depends on 8) The method of claim 8, wherein the fingerprint data includes respective time-stamps whereby the mobile device orientation, the magnetic field strength and direction, the received wireless signal strength, the wireless connectivity indication and the barometric pressure are correlated in accordance with the respective time-stamps. ### Claim 10 (depends on 1) The method of claim 1, wherein the set of access point devices comprises at least one of a Bluetooth® access point device, a Bluetooth® Low Energy (BLE) access point device, and a Wi-Fi access point device. ### Claim 11 A server computing system for minimizing signal interference and distortions between a mobile device traversing a pedestrian facility and the server computing device, the server computing system comprising: a processor; and a memory storing a set of instructions, the instructions executable in the processor to: access localization information including coordinate positions of the mobile device while in data connectivity with the mobile device via a first access point device from the set of access point device, the position of the mobile device being closer to the first access point device than the position of the mobile device to a second access point device from the set of access point device; while the mobile device is in data connectivity via the first access point device, receive a request from the mobile device to transition to the second access point device; determine a directional heading of the mobile device, based on an inertial sensor device of the mobile device; infer, based on the directional heading, at least one of a physically unobstructed line of sight wireless signal transmission path to the second access point device, and a more physically obstructed line of sight wireless signal transmission path to the first access point device; and based on the inferring, minimize the signal interference and distortions caused by a mobile device-carrying user by switching from a spatially closer access point device to a spatially farther access point device, the spatially closer access point device being the first access point device and the spatially farther access point device being the second access point device, wherein, while traversing the pedestrian facility, the mobile device faces the second access point device and the first access point is behind the mobile device. ### Claim 12 (depends on 11) The server computing device of claim 11, wherein switching from the spatially closer access point device to the spatially farther access point device includes establishing a bi-directional data transmission between the server computing device and the second access point device. ### Claim 13 (depends on 11) The server computing device of claim 11, wherein an obstruction in a line of sight wireless signal transmission path is based on a manner in which the mobile device-carrying user carries the mobile device. ### Claim 14 (depends on 11) The server computing device of claim 11, wherein the physically unobstructed line of sight wireless signal transmission path is inferred when a user of the mobile device faces the second access point device and the physically obstructed line of sight wireless signal transmission path is inferred when the first access device is behind the user ### Claim 15 (depends on 11) The server computing device of claim 11, wherein the processor further includes instructions to provide coordinate placement information of the set of access point devices within the pedestrian facility to the mobile device to identify an access point device for switching. ### Claim 16 (depends on 11) The server computing device of claim 11, wherein the localization information indicates that the mobile device is localized to a position between the first access point devices and the second access point devices of the set of access point device. ### Claim 17 (depends on 11) The server computing device of claim 11, wherein the pedestrian facility is one of a shopping mall, an airport facility, a warehouse, a college building, an office building, a sports arena and an at least partially enclosed building. ### Claim 18 (depends on 11) The server computing device of claim 11, wherein the mobile device is localized based on at least one of a mobile device orientation, a magnetic field strength and direction, a received wireless communication signal strength, a wireless connectivity indication and a barometric pressure in accordance with fingerprint data of the pedestrian facility. ### Claim 19 (depends on 18) The server computing device of claim 18, wherein the fingerprint data includes respective time-stamps whereby the mobile device orientation, the magnetic field strength and direction, the received wireless signal strength, the wireless connectivity indication and the barometric pressure are correlated in accordance with the respective time-stamps. ### Claim 20 (depends on 11) The server computing device of claim 11, wherein the set of access point devices comprises at least one of a Bluetooth® access point device, a Bluetooth® Low Energy (BLE) access point device, and a Wi-Fi access point device.