# US 12,604,155 B2 · Electronic device for controlling wireless communication connection and operating method thereof

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- Number: US 12,604,155 B2
- Document ID: US12604155B2
- Status: Granted
- Kind: B2
- Application number: 17/990,041
- Filed: 2022-11-18
- Published: 2023-05-18
- Granted: 2026-04-14
- Earliest claimed: 2021-11-18
- Assignees: Samsung Electronics Co., Ltd.
- Applicants: Samsung Electronics Co., Ltd.
- Inventors: Sangyoun Lee; Choonghoon Kim; Youngil Nam; Sinwoo Park; Seungjae Lee; Kyuhui Han
- Web page: https://patentgrep.com/patent/US12604155B2

## CPC

- H04W 4/023: {using mutual or relative location information between multiple location based services [LBS] targets or of distance thresholds}
- G01S 13/02: Systems using reflection of radio waves, e.g. primary radar systems; Analogous systems
- G01S 13/08: Systems for measuring distance only (indirect measurement G01S13/46)
- G01S 13/765: {with exchange of information between interrogator and responder}
- G01S 13/84: for distance determination by phase measurement
- G01S 13/931: of land vehicles
- G07C 9/00309: {operated with bidirectional data transmission between data carrier and locks}
- G07C 9/28: the pass enabling tracking or indicating presence
- H04W 4/02: Services making use of location information
- H04W 4/40: for vehicles, e.g. vehicle-to-pedestrians [V2P]
- H04W 4/80: Services using short range communication, e.g. near-field communication [NFC], radio-frequency identification [RFID] or low energy communication
- H04W 88/06: adapted for operation in multiple networks {or having at least two operational modes}, e.g. multi-mode terminals
- G07C 2009/00769: {with data transmission performed by wireless means}
- G07C 2209/63: Comprising locating means for detecting the position of the data carrier, i.e. within the vehicle or within a certain distance from the vehicle
- 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
- G07C: TIME OR ATTENDANCE REGISTERS; REGISTERING OR INDICATING THE WORKING OF MACHINES; GENERATING RANDOM NUMBERS; VOTING OR LOTTERY APPARATUS; ARRANGEMENTS, SYSTEMS OR APPARATUS FOR CHECKING NOT PROVIDED FOR ELSEWHERE

## Abstract

An electronic device configured to establish a first Bluetooth low energy (BLE) connection with an external electronic device, measure a distance between the external electronic device and the electronic device based on a first distance measurement scheme, identify whether the distance is within a set range between a first distance and a second distance. Based on a determination that the distance is within the set range, measure a distance between the external electronic device and the electronic device based on a second distance measurement scheme and establish a second BLE connection with the external electronic device. Based on a determination that the distance measured based on the second distance measurement scheme is shorter than the second distance, measure a distance between the electronic device and the external electronic device based on an ultra-wide band (UWB) technology.

## Claims

### Claim 1

An electronic device, comprising:
communication circuitry;
at least one processor operatively connected with the communication circuitry; and
memory storing instructions, wherein the instructions, when executed by the at least one processor individually or collectively, cause the electronic device to:
establish, via the communication circuitry, a first Bluetooth low energy (BLE) connection with an external electronic device,
after a BLE pairing procedure between the electronic device and the external electronic device is completed, measure, via the communication circuitry, a distance between the external electronic device and the electronic device based on a round trip time (RTT) ranging in the first BLE connection,
identify whether the distance measured based on the RTT ranging is within a set range which is shorter than or equal to a first value and longer than or equal to a second value,
based on a determination that the distance measured based on the RTT ranging is within the set range, measure a distance between the external electronic device and the electronic device based on a phase ranging in the first BLE connection,
based on a determination that the distance measured based on the RTT ranging is shorter than a third value, perform a transaction process to verify an immobilizer token which is a confidential data element shared between the electronic device and the external electronic device,
based on a determination that the distance measured based on the phase ranging is shorter than the second value, perform a ultra wide band (UWB) ranging secret key (URSK) derivation flow, and
after the URSK derivation flow is completed, measure, via the communication circuitry, a distance between the electronic device and the external electronic device based on a URSK derived by the URSK derivation flow.

### Claim 2 (depends on 1)

The electronic device of claim 1, wherein the instructions, when executed by the at least one processor individually or collectively, cause the electronic device to,
based on a determination that the distance measured based on the RTT ranging is within the set range, establish a second BLE connection with the external electronic device via the communication circuitry,
wherein the first value is a distance at which establishment of the second BLE connection between the electronic device and the external electronic device is triggered, and
wherein the second BLE connection includes a logical link control and adaptation protocol (L2CAP) connection-oriented channel (CoC) connection.

### Claim 3 (depends on 1)

The electronic device of claim 1, wherein the second value is a distance at which establishment of a UWB connection between the electronic device and the external electronic device is triggered.

### Claim 4 (depends on 3)

The electronic device of claim 3, wherein the instructions, when executed by the at least one processor individually or collectively, cause the electronic device to:
perform, via the communication circuitry, a location-based service-related process with the external electronic device in the UWB connection, and
wherein the location-based service-related process is a digital key-related process related to the distance between the electronic device and the external electronic device.

### Claim 5 (depends on 1)

The electronic device of claim 1, wherein the instructions, when executed by the at least one processor individually or collectively, cause the electronic device to:
exchange, with the external electronic device via the communication circuitry, at least one of capability information or at least one parameter related to at least one of the RTT ranging or the phase ranging.

### Claim 6 (depends on 1)

The electronic device of claim 1, wherein the instructions, when executed by the at least one processor individually or collectively, cause the electronic device to:
upon identifying that a set condition is satisfied while the distance between the electronic device and the external electronic device is being measured based on the UWB technology using a URSK derived by the URSK derivation flow, measure the distance between the electronic device and the external electronic device based on at least one of the RTT ranging or the phase ranging.

### Claim 7 (depends on 1)

The electronic device of claim 1, wherein the instructions, when executed by the at least one processor individually or collectively, cause the electronic device to:
based on a determination that the distance measured based on the phase ranging is longer than or equal to the second value while the distance between the electronic device and the external electronic device is being measured based on the UWB technology using a URSK derived by the URSK derivation flow, release a UWB connection established with the external electronic device, and measure the distance between the electronic device and the external electronic device based on at least one of the RTT ranging or the phase ranging.

### Claim 8 (depends on 1)

The electronic device of claim 1, wherein the instructions, when executed by the at least one processor individually or collectively, cause the electronic device to:
identify an input for requesting to perform a location-based service-related action for the external electronic device,
identify whether the measured distance between the external electronic device and the electronic device is longer than a third value for the location-based service-related action, and
based on a determination that the measured distance between the external electronic device and the electronic device is shorter than or equal to the third value, perform, via the communication circuitry, the location-based service-related action with the external electronic device in the first BLE connection.

### Claim 9 (depends on 8)

The electronic device of claim 8, wherein the instructions, when executed by the at least one processor individually or collectively, cause the electronic device to:
based on a determination that the measured distance between the external electronic device and the electronic device is longer than the third value, display a warning message via a display of the electronic device.

### Claim 10 (depends on 8)

The electronic device of claim 8, wherein the instructions, when executed by the at least one processor individually or collectively, cause the electronic device to:
exchange, with the external electronic device via the communication circuitry, at least one of capability information or at least one parameter related to the RTT ranging and the phase ranging.

### Claim 11 (depends on 1)

The electronic device of claim 1, wherein the instructions, when executed by the at least one processor individually or collectively, cause the electronic device to:
based on identifying that the external electronic device supports the RTT ranging and the phase ranging which are based on a BLE technology in the first BLE connection, measure the RTT ranging, and/or
based on a determination that the distance measured based on the RTT ranging is longer than the first value, measure a distance between the external electronic device and the electronic device based on a BLE received signal strength indicator, RSSI, ranging.

### Claim 12

An operating method of an electronic device, the operating method comprising:
establishing a first Bluetooth low energy (BLE) connection with an external electronic device;
after a BLE pairing procedure between the electronic device and the external electronic device is completed, measuring a distance between the external electronic device and the electronic device based on a round trip time (RTT) ranging in the first BLE connection;
based on a determination that the distance measured based on the RTT ranging is shorter than a third value, performing a transaction process to verify an immobilizer token which is a confidential data element shared between the electronic device and the external electronic device;
identifying whether the distance measured based on the RTT ranging is within a set range which is shorter than or equal to a first value and longer than or equal to a second value;
based on a determination that the distance measured based on the RTT ranging is within the set range, measuring a distance between the external electronic device and the electronic device based on a phase ranging in the first BLE connection;
based on a determination that the distance measured based on the phase ranging is shorter than the second value, performing a ultra wide band (UWB) ranging secret key (URSK) derivation flow; and
after the URSK derivation flow is completed, measuring a distance between the electronic device and the external electronic device based on a URSK derived by the URSK derivation flow using ultra wide band (UWB) technology.

### Claim 13 (depends on 12)

The operating method of claim 12, further comprising:
based on a determination that the distance measured based on the RTT ranging is within the set range, establishing a second BLE connection with the external electronic device,
wherein the first value is a distance at which establishment of the second BLE connection between the electronic device and the external electronic device is triggered, and
wherein the second BLE connection includes a logical link control and adaptation protocol (L2CAP) connection-oriented channel (CoC) connection.

### Claim 14 (depends on 12)

The operating method of claim 12, wherein the second value is a distance at which establishment of a UWB connection between the electronic device and the external electronic device is triggered.

### Claim 15 (depends on 12)

The operating method of claim 12, further comprising:
exchanging, with the external electronic device, at least one of capability information or at least one parameter related to at least one of the RTT ranging or the phase ranging.

### Claim 16 (depends on 12)

The operating method of claim 12, further comprising:
based on a determination that the distance based on the phase ranging is shorter than the second value, establishing a UWB connection,
wherein the distance between the electronic device and the external electronic device is measured based on the UWB technology using a URSK derived by the URSK derivation flow in the established UWB connection.

### Claim 17 (depends on 16)

The operating method of claim 16, further comprising:
performing a location-based service-related process with the external electronic device in the UWB connection,
wherein the location-based service-related process is a digital key-related process related to the distance between the electronic device and the external electronic device measured using a URSK derived by the URSK derivation flow.

### Claim 18 (depends on 12)

The operating method of claim 12, further comprising:
upon identifying that a set condition is satisfied while the distance between the electronic device and the external electronic device is being measured based on the UWB technology using a URSK derived by the URSK derivation flow, measuring the distance between the electronic device and the external electronic device based on at least one of the RTT ranging or the phase ranging.

### Claim 19 (depends on 12)

The operating method of claim 12, further comprising:
based on identifying that the external electronic device supports the RTT ranging and the phase ranging which are based on a BLE technology in the first BLE connection, measuring the RTT ranging, and/or
based on a determination that the distance measured based on the RTT ranging is longer than the first value, measuring a distance between the external electronic device and the electronic device based on a BLE received signal strength indicator, RSSI, ranging.