Electronic device, method, and computer readable storage medium for obtaining information related to external object
An electronic device includes an ultra-wide band (UWB) circuit, and at least one processor comprising a controller of UWB circuit. The at least one processor is configured to transmit, through UWB circuit operating in a first mode, a first signal for a first field in a first frame, transmit, through UWB circuit operating in the first mode, a second signal including designated information for a second field in the first frame, receive, through UWB circuit operating in the first mode, a first reflected signal related to the first signal and a second reflected signal related to the second signal, respectively, caused by an external object, according to a state of the designated information identified from the second reflected signal, obtain information on the external object based on the first reflected signal or transmit a second frame through UWB circuit operating in a second mode.
1. An electronic device comprising:
ultra-wide band (UWB) circuitry;
memory, storing one or more instructions, comprising one or more storage media; and
at least one processor comprising circuitry configured to control the UWB circuitry,
wherein the one or more instructions, when executed by the at least one processor, individually or collectively, cause the electronic device to:
transmit, through the UWB circuitry operating in a first transmission mode for a first period, a first frame by transmitting a first signal for a first field and a second signal for a second field including reference information;
receive, through the UWB circuitry, a first reflected signal related to the first signal and a second reflected signal related to the second signal, respectively, caused by an external object;
based on a state of the reference information identified from the second reflected signal being a first state, obtain information on the external object based on the first reflected signal; and
based on the state of the reference information being a second state, transmit a second frame by transmitting a third signal for the first field and a fourth signal for the second field, through the UWB circuitry operating in a second transmission mode for a second period different from the first period, switched from the first transmission mode.
2. The electronic device according to claim 1 , wherein the one or more instructions, when executed by the at least one processor, individually or collectively, cause the electronic device to:
transmit the second signal, through the UWB circuitry, operating in the first transmission mode after a reference time interval has elapsed from a timing at which the first signal is transmitted.
3. The electronic device according to claim 1 , wherein the one or more instructions, when executed by the at least one processor, individually or collectively, cause the electronic device to:
identify that the reference information identified from the second reflected signal corresponds to the reference information;
identify, based on identifying that the reference information identified from the second reflected signal corresponds to the reference information, the state of the reference information as the first state; and
obtain, based on the information on channel impulse response obtained from the first reflected signal, the information on the external object.
4. The electronic device according to claim 3 , further comprising an output device,
wherein the one or more instructions, when executed by the at least one processor, individually or collectively, cause the electronic device to:
obtain biometric information of the external object, included in the information on the external object; and
output, through the output device, a notification based on the biometric information satisfies a reference condition.
5. The electronic device according to claim 1 , wherein the information on the external object comprises at least one of information on a shape of the external object, information on a location of the external object, and information on a movement of the external object.
6. The electronic device according to claim 1 , wherein the one or more instructions, when executed by the at least one processor, individually or collectively, cause the electronic device to:
identify that the reference information identified from the second reflected signal distinct from the reference information;
identify, based on identifying that the reference information identified from the second reflected signal corresponds to the reference information, the state of the reference information as the second state;
bypass obtaining the information on the external object based on the state of the reference information identified from the second reflected signal being the second state; and
transmit, through the UWB circuitry operating in the second transmission mode for the second period, the second frame.
7. The electronic device according to claim 1 , wherein at least a portion of the first field is configured based on a first sequence,
wherein the reference information comprises a second sequence, and
wherein the second sequence is distinct from the first sequence.
8. The electronic device according to claim 7 , wherein the one or more instructions, when executed by the at least one processor, individually or collectively, cause the electronic device to:
identify a third sequence based on the second reflected signal; and
identify, based on the second sequence and the identified third sequence, the state of the reference information identified from the second reflected signal.
9. The electronic device according to claim 8 ,
wherein the second field is configured based on a fourth sequence distinct from the second sequence.
10. The electronic device according to claim 8 , wherein the one or more instructions, when executed by the at least one processor, individually or collectively, cause the electronic device to:
identify that the third sequence identified based on the second reflected signal corresponds to the second sequence; and
based on identifying that the third sequence corresponds to the second sequence, identify the state of the reference information as the first state.
11. The electronic device according to claim 1 , wherein the one or more instructions, when executed by the at least one processor, individually or collectively, cause the electronic device to:
identify whether the first reflected signal has been received with less than a reference intensity; and
switch an operation mode of the UWB circuitry from the first transmission mode to the second transmission mode based on the first reflected signal being received with less than the reference intensity.
12. The electronic device according to claim 1 , wherein the one or more instructions, when executed by the at least one processor, individually or collectively, cause the electronic device to:
bypass an operation for measuring a channel condition for transmitting the first signal and the second signal; and
transmit, through the UWB circuitry operating in the first transmission mode, the first signal.
13. The electronic device according to claim 1 , wherein the reference information comprises a unique identification number (UID) of the electronic device.
14. The electronic device according to claim 1 , wherein the first frame is transmitted according to the first period based on a first offset.
15. The electronic device according to claim 14 ,
wherein the second frame is transmitted according to the second period based on a second offset distinct from the first offset.
16. The electronic device according to claim 1 , wherein the first frame is transmitted in first channel through the UWB circuitry operating in the first transmission mode, and
wherein the second frame is transmitted in second channel distinct from the first channel through the UWB circuitry operating in the second transmission mode.
17. A method of an electronic device, the method comprising:
transmitting, through an ultra-wide band (UWB) circuit operating in a first transmission mode for a first period, a first frame by transmitting a first signal for a first field and a second signal for a second field including reference information;
receiving, through the UWB circuit, a first reflected signal related to the first signal and a second reflected signal related to the second signal, respectively, caused by an external object;
based on a state of the reference information identified from the second reflected signal being a first state, obtaining information on the external object based on the first reflected signal; and
based on the state of the reference information being a second state, transmitting a second frame by transmitting a third signal for the first field and a fourth signal for the second field, through the UWB circuit operating in a second transmission mode for a second period different from the first period, switched from the first transmission mode.
18. A non-transitory computer readable storage medium storing one or more programs, the one or more programs including instructions, which, when being executed by at least one processor of an electronic device with an ultra-wide band (UWB) circuit, cause the electronic device to:
transmit, through the UWB circuit operating in a first transmission mode for a first period, a first frame by transmitting a first signal for a first field and a second signal for a second field including reference information;
receive, through the UWB circuit, a first reflected signal related to the first signal and a second reflected signal related to the second signal, respectively, caused by an external object;
based on a state of the reference information identified from the second reflected signal being a first state, obtain information on the external object based on the first reflected signal; and
based on the state of the reference information being a second state, transmit a second frame by transmitting a third signal for the first field and a fourth signal for the second field, through the UWB circuit operating in a second transmission mode switched for a second period different from the first period, from the first transmission mode.
19. The method according to claim 17 , wherein the method comprises:
identifying that the reference information identified from the second reflected signal distinct from the reference information;
identifying, based on identifying that the reference information identified from the second reflected signal corresponds to the reference information, the state of the reference information as the second state;
bypassing obtaining the information on the external object based on the state of the reference information identified from the second reflected signal being the second state; and
transmitting, through the UWB circuit operating in the second transmission mode for the second period, the second frame.
20. The electronic device according to claim 1 , wherein the one or more instructions, when executed by the at least one processor, individually or collectively, cause the electronic device to:
acquire biometric information of a user based on the first reflected signal and the second reflected signal;
determine whether the biometric information of the user satisfies a reference condition; and
output a notification based on a determination that the biometric information of the user satisfies the reference condition,
wherein the biometric information of the user comprises at least one of a breathing cycle or a heart rate.