DATA TRANSFER WITH WIRELESSLY POWERED COMMUNICATION DEVICES

• US 20110009075A1
• Filed: 07/07/2010
• Published: 01/13/2011
• Est. Priority Date: 07/07/2009
• Status: Abandoned Application

• Current Assignee: Nokia Corporation
• Original Assignee: Nokia Corporation
• Inventors: Kössi, Jouni Olavi, ARPONEN, Jarmo Tapani, KAAJA, Jari-Jukka Harald, JANTUNEN, Joni Jorma Marius, BOLDYREV, Sergey
• Application Number:
  US12/832,004
• Publication Number:
  US 20110009075A1
• Time in Patent Office: Days
• US Class Current: 455/73
• CPC Class Codes: G06K 19/0723 the record carrier comprising an arrangement for non-contact communication, e.g. wireless communication circuits on transponder cards, non-contact smart cards or RFIDs
• CPC Class Codes: G06K 7/0008 General problems related to the reading of electronic memory record carriers, independent of its reading method, e.g. power transfer
• CPC Class Codes: H04W 76/11 Allocation or use of connection identifiers
• CPC Class Codes: H04W 76/19 Connection re-establishment
• CPC Class Codes: H04W 76/30 Connection release

Abstract

In a system comprising one or more reader devices and a plurality of wirelessly powered communication devices, the reader device has a transceiver to transmit a wireless signals to scan proximate wirelessly powered communication devices. The reader device also establishes communications with a proximate wirelessly powered communication device, forms a session with the proximate wirelessly powered communication devices, communicates in the session with the wirelessly powered communication device, and maintains a state of the session.

Claims

1. A method comprising:

establishing communications with a proximate wirelessly powered communication device;

forming a session with the proximate wirelessly powered communication device;

communicating in the session with the wirelessly powered communication device; and

maintaining a state of the session.

2. A method according to claim 1, wherein the forming of the session comprises storing a set of session parameters for the duration of the session and updating the stored session parameters according to detected changes in the session.

3. A method according to claim 2, wherein the session parameters comprise one or more parameters selected from a group consisting of:

session identity, device identity of the wirelessly powered device, security level indication, session log indicative of transactions carried during the session, direction of transfer of a transaction, address space accessed in a transaction, and pointer to current address.

4. A method according to claim 1, further comprising transmitting a wireless signal to detect proximate wirelessly powered communication devices.

5. A method according to claim 1, further comprising suspending of the session responsive to any one of the following:

a suspend request from a user;

suspend request from an application;

battery level of a user device meeting a predetermined low limit; and

losing connection with the wirelessly powered communication device.

6. A method according to claim 1, wherein the method further comprises terminating the session responsive to meeting a termination trigger.

7. A method according to claim 1, wherein the method further comprises maintaining a session identity for each ongoing session.

8. An apparatus comprising:

a transceiver configured to communicate with proximate wirelessly powered communication devices; and

a processor configured to cause the apparatus to;

establish communications with a proximate wirelessly powered communication device;

form a session with the proximate wirelessly powered communication device;

communicate in the session with the wirelessly powered communication device; and

maintain a state of the session.

9. An apparatus according to claim 8, wherein the processor is further configured to cause the apparatus to store a set of session parameters for the duration of the session and update the stored session parameters according to detected changes in the session.

10. An apparatus according to claim 9, wherein the session parameters comprise one or more parameters selected from a group consisting of:

session identity, device identity of the wirelessly powered device, security level indication, session log indicative of transactions carried during the session, direction of transfer of a transaction, address space accessed in a transaction, and pointer to current address.

11. An apparatus according to claim 8, wherein the processor is further configured to cause the transceiver to transmit a wireless signal to detect proximate wirelessly powered communication devices.

12. An apparatus according to claim 8, wherein the processor is further configured to cause the apparatus to suspend of the session responsive to any one of the following:

a suspend request from a user;

suspend request from an application;

battery level of a user device meeting a predetermined low limit; and

losing connection with the wirelessly powered communication device.

13. An apparatus according to claim 8, wherein the processor is further configured to cause the apparatus to terminate the session responsive to meeting a termination trigger.

14. An apparatus according to claim 8, wherein the processor is further configured to cause the apparatus to maintain a session identity for each ongoing session.

15. A computer program product comprising a computer readable program code stored in a computer readable memory medium, the computer program comprising computer executable program code configured to cause, when executed by a computer, the computer to:

establish communications with a proximate wirelessly powered communication device;

form a session with the proximate wirelessly powered communication device;

communicate in the session with the wirelessly powered communication device; and

maintain a state of the session.

16. An apparatus comprising:

a transceiver configured to obtain operating power from received wireless signals;

a processor configured to control the operation of the apparatus, the processor being configured to cause the transceiver to establish communications with a proximate wireless communication device;

the processor being further configured to cause the apparatus to form a session with the proximate wireless communication device and to exchange with the proximate wireless communication device a session identifier, the session identifier identifying said session; and

a memory configured to maintain the session identifier.

17. An apparatus according to claim 16, wherein the processor is configured to determine whether there is a suspended session with the proximate wireless communication device based on the received session identifier, wherein:

when there is a suspended session with the proximate wireless communication device, resuming the suspended session; and

,

when there is no suspended session with the proximate wireless communication device, establishing a new session with the proximate wireless communication device.

18. A method comprising:

obtaining operating power at least for communications from wireless signals;

establishing communications with a proximate wireless communication device;

forming a session with the proximate wireless communication device and exchanging with the proximate wireless communication device a session identifier, the session identifier identifying said session; and

maintaining the session identifier.

19. A method according to claim 18 further comprising suspending of the session responsive at least one of a receiving a suspend request from the proximate wireless communication device and losing connection with the proximate wireless communication device.

20. A method according to claim 18, further comprising determining whether there is a suspended session with the proximate wireless communication device based on the received session identifier, wherein:

when there is a suspended session with the proximate wireless communication device, resuming the suspended session; and

,

when there is no suspended session with the proximate wireless communication device, establishing a new session with the proximate wireless communication device.

21. A computer program product comprising a computer readable program code stored in a computer readable memory medium, the computer program comprising computer executable program code configured to cause, when executed by a computer, the computer to:

obtain operating power for communications from wireless signals;

establish communications with a proximate wireless communication device;

form a session with the proximate device and receive a session identifier, the session identifier identifying said session; and

maintain the session identifier.