Electronic device for performing ranging through UWB, and operation method of electronic device

1 . An operation method of a first electronic device for performing ranging through ultra-wideband (UWB), the operation method comprising:

transmitting, by the first electronic device, a first ranging control message (RCM) including information for controlling a ranging procedure of a ranging group,

wherein the first RCM includes a first transmission offset for the ranging group, a ranging round information element (RR IE) including a second transmission offset configured for receiving a ranging request from a device not participating in the ranging group, and a first ranging device management information element (RDM IE) including information about a slot designated to receive the ranging request, and

wherein an address for the slot designated to receive the ranging request is specified as 0xFFFF;

receiving the ranging request from a second electronic device not participating in the ranging group based on the second transmission offset and the information about the slot designated to receive the ranging request;

determining whether to accept for the second electronic device to participate in the ranging group based on the received ranging request;

in case of accepting for the second electronic device to participate in the ranging group, transmitting a second RCM including information about a slot allocated to the second electronic device,

wherein the second RCM includes a second RDM IE including a slot allocated to each of devices of the ranging group and an address of each of the devices of the ranging group, and

wherein the second RDM IE indicates an acknowledgement for the ranging request from the second electronic device, in case that the second RDM IE further includes an address of the second electronic device; and

performing ranging with the second electronic device based on the second RCM.

2 . The operation method of claim 1 , wherein the performing of the ranging includes:

transmitting a first ranging frame to the second electronic device;

receiving a second ranging frame from the second electronic device;

calculating, based on the first ranging frame and the second ranging frame, a time period taken for the second ranging frame to be delivered from the second electronic device to the first electronic device; and

calculating a distance between the first electronic device and the second electronic device based on the calculated time period.

3 . An operation method of a second electronic device for performing ranging through ultra-wideband (UWB), the operation method comprising:

receiving a first ranging control message (RCM) from a first electronic device that controls a ranging procedure of a ranging group,

wherein the first RCM includes a first transmission offset for the ranging group, a ranging round information element (RR IE) including a second transmission offset configured for receiving a ranging request from a device not participating in the ranging group, and a first ranging device management information element (RDM IE) including information about a slot designated to receive the ranging request, and

wherein an address for the slot designated to receive the ranging request is specified as 0xFFFF;

transmitting the ranging request for participating in the ranging group to the first electronic device based on the second transmission offset and the information about the slot designated to receive the ranging request;

in case that the second electronic device is accepted for participating in the ranging group based on the ranging request, receiving a second RCM including information about a slot allocated to the second electronic device,

wherein the second RCM includes a second RDM IE including a slot allocated to each of devices of the ranging group and an address of each of the devices of the ranging group, and

wherein the second RDM IE indicates an acknowledgement for the ranging request, in case that the second RDM IE further includes an address of the second electronic device; and

performing ranging with the ranging group based on the second RCM.

4 . A first electronic device for performing ranging through ultra-wideband (UWB), the first electronic device comprising:

a communicator;

a memory; and

at least one processor configured to execute a program stored in the memory to control an operation of the first electronic device,

wherein the at least one processor is further configured to:

transmit a first ranging control message (RCM) including information for controlling a ranging procedure of a ranging group for the first electronic device,

wherein the first RCM includes a first transmission offset for the ranging group, a ranging round information element (RR IE) including a second transmission offset configured for receiving a ranging request from a device not participating in the ranging group, and a first ranging device management information element (RDM IE) including information about a slot designated to receive the ranging request, and

wherein an address for the slot designated to receive the ranging request is specified as 0xFFFF,

receive the ranging request from a second electronic device not participating in the ranging group based on the second transmission offset and the information about the slot designated to receive the ranging request,

determine whether to accept for the second electronic device to participate in the ranging group based on the received ranging request,

in case of accepting for the second electronic device to participate in the ranging group, transmit a second RCM including information about a slot allocated to the second electronic device,

wherein the second RCM includes a second RDM IE including a slot allocated to each of devices of the ranging group and an address of each of the devices of the ranging group, and

wherein the second RDM IE indicates an acknowledgement for the ranging request from the second electronic device, in case that the second RDM IE further includes an address of the second electronic device, and

perform ranging with the second electronic device based on the second RCM.

5 . The first electronic device of claim 4 , wherein the at least one processor is further configured to:

transmit a first ranging frame to the second electronic device,

receive a second ranging frame from the second electronic device,

calculate, based on the first ranging frame and the second ranging frame, a time period taken for the second ranging frame to be delivered from the second electronic device to the first electronic device, and

calculate a distance between the first electronic device and the second electronic device based on the calculated time period.