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KR-20260065882-A - Method and apparatus for ultra-wideband communication-based transactions

KR20260065882AKR 20260065882 AKR20260065882 AKR 20260065882AKR-20260065882-A

Abstract

A method for a first ultra-wide band (UWB) device according to one embodiment of the present disclosure may include: an operation of estimating the location of the first UWB device based on DL-TDoA; an operation of transmitting a transaction start message to the second UWB device via UWB communication when the first UWB device enters a transaction area set for the second UWB device according to the location estimation; an operation of receiving a transaction request message from the second UWB device via UWB communication and transmitting a transaction response message corresponding to the transaction request message to the second UWB device via UWB communication; and an operation of performing DS-TWR to determine whether the first UWB device moves outside the transaction area when the transaction between the first UWB device and the second UWB device is completed.

Inventors

  • 최준영
  • 이주현
  • 서진욱

Assignees

  • 삼성전자주식회사

Dates

Publication Date
20260511
Application Date
20231222

Claims (15)

  1. In the method of the first UWB (ultra wide band) device, An operation to estimate the location of the first UWB device based on DL-TDoA (downlink-TDoA); When the first UWB device enters the transaction area set for the second UWB device according to the above location estimation, the operation of transmitting a transaction start message to the second UWB device via UWB communication; The operation of receiving a transaction request message from the second UWB device via UWB communication and transmitting a transaction response message corresponding to the transaction request message to the second UWB device via UWB communication; and A method characterized by including an operation to perform DS-TWR (Double-sided two-way ranging) to determine whether the first UWB device moves outside the transaction area when a transaction between the first UWB device and the second UWB device is completed.
  2. In paragraph 1, A method characterized by further including the operation of receiving a first message containing information regarding a free pass permission (FFP) from the second UWB device when a transaction between the first UWB device and the second UWB device is completed.
  3. In paragraph 2, the information regarding the above FFP is, A method characterized by including a message transmission time (Message Tx Time) and a random number for the first message.
  4. In paragraph 2, An operation to determine that the first UWB device has moved outside the transaction area based on the above DS-TWR; and A method further comprising the operation of transmitting a second message to the second UWB device, the second message including a flag indicating that the first UWB device moves outside the transaction area.
  5. In paragraph 2, The operation of transmitting a third message (Request FPP confirm) to the second UWB device to verify the authenticity of the above FFP; and A method further comprising the operation of receiving a fourth message (FPP accept/Deny) containing information regarding the authenticity of the above FFP from the second UWB device.
  6. In paragraph 5, the above third message is, A method characterized by including a message transmission time (Message Tx Time) and a random number for the first message.
  7. In paragraph 1, A method characterized in that the first UWB device is implemented as a mobile device and the second UWB device is implemented as a gate device.
  8. In the method of the second UWB (ultra wide band) device, When the first UWB device enters a transaction area set for the second UWB device based on location estimation based on DL-TDoA (downlink-TDoA), the operation of receiving a transaction start message from the first UWB device via UWB communication; The operation of transmitting a transaction request message to the first UWB device via UWB communication and receiving a transaction response message corresponding to the transaction request message from the first UWB device via UWB communication; and A method characterized by including an operation to perform DS-TWR (Double-sided two-way ranging) to determine whether the first UWB device moves outside the transaction area when a transaction between the first UWB device and the second UWB device is completed.
  9. In paragraph 8, A method characterized by further including the operation of transmitting a first message containing information regarding a free pass permission (FFP) to the first UWB device when a transaction between the first UWB device and the second UWB device is completed.
  10. In paragraph 9, the information regarding the above FFP is, A method characterized by including a message transmission time (Message Tx Time) and a random number for the first message.
  11. In Paragraph 9, An operation to determine that the first UWB device has moved outside the transaction area based on the above DS-TWR; and A method further comprising the operation of receiving a second message from the first UWB device, the second message including a flag indicating that the first UWB device moves outside the transaction area.
  12. In Paragraph 9, The operation of receiving a third message (Request FPP confirm) from the first UWB device to verify the authenticity of the above FFP; and A method characterized by further including the operation of transmitting a fourth message (FPP accept/Deny) containing information regarding the authenticity of the above FFP to the first UWB device.
  13. In Clause 12, the above third message is, A method characterized by including a message transmission time (Message Tx Time) and a random number for the first message.
  14. In the first UWB (ultra wide band) device, Transmitter/receiver; and It includes a control unit, and the control unit, Estimating the location of the first UWB device based on DL-TDoA(downlink-TDoA), and When the first UWB device enters the transaction area set for the second UWB device according to the above location estimation, a transaction start message is transmitted to the second UWB device via UWB communication, and A transaction request message is received from the second UWB device via UWB communication, and a transaction response message corresponding to the transaction request message is transmitted to the second UWB device via UWB communication. A device characterized by performing DS-TWR (Double-sided two-way ranging) to determine whether the first UWB device moves outside the transaction area when a transaction between the first UWB device and the second UWB device is completed.
  15. In the second UWB (ultra wide band) device, Transmitter/receiver; and It includes a control unit, and the control unit, When the first UWB device enters the transaction area set for the second UWB device based on location estimation based on DL-TDoA (downlink-TDoA), a transaction start message is received from the first UWB device via UWB communication, and A transaction request message is transmitted to the first UWB device via UWB communication, and a transaction response message corresponding to the transaction request message is received from the first UWB device via UWB communication. A device characterized by performing DS-TWR (Double-sided two-way ranging) to determine whether the first UWB device moves outside the transaction area when a transaction between the first UWB device and the second UWB device is completed.

Description

Method and apparatus for ultra-wideband communication-based transactions The present disclosure relates to UWB communication, and more specifically, to a method and apparatus for UWB communication-based transactions. The Internet is evolving from a human-centered network where humans generate and consume information into an IoT (Internet of Things) network where distributed components, such as objects, exchange and process information. IoE (Internet of Everything) technology, which combines IoT with Big Data processing technologies through connections with cloud servers, is also emerging. Implementing IoT requires technological elements such as sensing technology, wired and wireless communication and network infrastructure, service interface technology, and security technology. Recently, technologies such as sensor networks, Machine-to-Machine (M2M) communication, and Machine-Type Communication (MTC) are being researched for connecting objects. In an IoT environment, intelligent IT (Internet Technology) services that create new value for human life by collecting and analyzing data generated from connected objects can be provided. Through the convergence and integration of existing IT (Information Technology) with various industries, IoT can be applied to fields such as smart homes, smart buildings, smart cities, smart or connected cars, smart grids, healthcare, smart home appliances, and advanced medical services. With the advancement of wireless communication systems, it has become possible to provide various services, and thus measures to effectively provide these services are required. For example, ranging technology that measures the distance between electronic devices using Ultra Wide Band (UWB) can be used. UWB is a wireless communication technology that uses a very wide frequency band of several GHz or more in the baseband without using a wireless carrier. Figure 1 shows an exemplary architecture of a UWB device. Figure 2 shows an exemplary configuration of a communication system including a UWB device. Figure 3 shows an exemplary structure of a frame used for UWB communication. Figure 4 shows how two UWB devices perform UWB communication. Figure 5 shows how two UWB devices perform UWB ranging. Figure 6 shows the structure of a ranging block and round used for UWB ranging. FIG. 7 shows an exemplary architecture of a system providing UWB-based gate services according to one embodiment of the present disclosure. FIG. 8 illustrates an exemplary operation scenario of a gate system according to one embodiment of the present disclosure. FIG. 9 illustrates a gate service procedure of a gate system according to one embodiment of the present disclosure. FIG. 10 illustrates an exemplary operation scenario of a gate system according to one embodiment of the present disclosure. FIG. 11 is a flowchart illustrating a transaction performed in a gate system according to one embodiment of the present disclosure. FIG. 12 illustrates an exemplary operation scenario of a unidirectional gate system according to one embodiment of the present disclosure. FIG. 13 illustrates an exemplary operation scenario of a bidirectional gate system according to one embodiment of the present disclosure. FIG. 14 is a diagram illustrating an example of a time interval in which a transaction is performed in a gate system according to one embodiment of the present disclosure. FIG. 15 illustrates an exemplary operation scenario of a gate system according to one embodiment of the present disclosure. FIG. 16 is a diagram illustrating an example of a time interval in which a transaction is performed in a gate system according to one embodiment of the present disclosure. FIG. 17 is a diagram illustrating the point in time when Free Pass Permission (FPP) is granted in a gate system according to one embodiment of the present disclosure. FIG. 18 is a diagram illustrating the point in time when an FPP is recovered in a gate system according to one embodiment of the present disclosure. FIGS. 19a, FIG. 19b, and FIG. 19c illustrate examples of FPP being used in a gate system according to one embodiment of the present disclosure. FIG. 20 is a diagram illustrating messages for determining the authenticity of an FPP in a gate system according to one embodiment of the present disclosure. FIG. 21 is a diagram illustrating messages for determining the authenticity of an FPP in a gate system according to one embodiment of the present disclosure. FIG. 22 is a drawing illustrating the structure of a first electronic device according to one embodiment of the present disclosure. FIG. 23 is a drawing illustrating the structure of a second electronic device according to one embodiment of the present disclosure. Hereinafter, embodiments of the present disclosure will be described in detail with reference to the attached drawings. In describing the embodiments, technical details that are well known in the technical field to which this disclosure belongs and are not