# US 9,438,671 B2 · System and method of managing pairing information associated with peer-to-peer device pairings > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 9,438,671 B2 - Document ID: US9438671B2 - Status: Granted - Kind: B2 - Application number: 14/607,820 - Filed: 2015-01-28 - Published: 2015-05-21 - Granted: 2016-09-06 - Earliest claimed: 2011-10-18 - Assignees: BlackBerry Limited - Applicants: Blackberry Limited - Inventors: Shi Harry Chen - Web page: https://patentgrep.com/patent/US9438671B2 ## CPC - H04L 67/104: Peer-to-peer [P2P] networks - H04B 7/00: Radio transmission systems, i.e. using radiation field (H04B10/00, H04B15/00 take precedence) - H04L 67/1072: {Discovery involving ranked list compilation of candidate peers} - H04W 4/80: Services using short range communication, e.g. near-field communication [NFC], radio-frequency identification [RFID] or low energy communication - H04W 8/005: {Discovery of network devices, e.g. terminals} - H04W 12/04: Key management, e.g. using generic bootstrapping architecture [GBA] - H04W 12/50: Secure pairing of devices - H04W 76/10: Connection setup - H04W 76/19: Connection re-establishment - H04B 5/20: characterised by the transmission technique; characterised by the transmission medium - H04W 76/14: Direct-mode setup - H04W 76/30: Connection release - H04L: TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION (arrangements common to telegraphic and telephonic communication H04M) - H04B: TRANSMISSION - H04W: WIRELESS COMMUNICATION NETWORKS (broadcast communication H04H; communication systems using wireless links for non-selective communication, e.g. wireless extensions H04M1/72) ## Abstract Systems and methods of managing pairing information associated with peer-to-peer device pairings are disclosed herein. The pairing information can include link keys or other configuration data associated with eh peer-to-peer device pairing. The system can detect that a first electronic device has paired with a second electronic device via a peer-to-peer device pairing connection. The first electronic device can store pairing information associated with the peer-to-peer device pairing. The system can determine when the peer-to-peer device pairing terminates. For example, the system can determine that a peer-to-peer activity has terminated, that a timeout period has elapsed, or any other event indicative of a termination of a peer-to-peer device pairing. In response to the determination that the peer-to-peer device pairing terminates, the system can delete the pairing information, thereby efficiently utilizing the storage medium of the first computing device. ## Claims ### Claim 1 A method comprising: determining when a peer-to-peer device pairing terminates; in response to determining the peer-to-peer device pairing is terminated, prompting whether to save the pairing information; deleting the pairing information and rendering a user-selectable icon on the device to reestablish the peer-to-peer device pairing in response to termination; and storing pairing information for the peer-to-peer pairing in response to receiving a command to re-establish the peer-to-peer device paring. ### Claim 2 (depends on 1) The method of claim 1 wherein the peer-to-peer device pairing is one of a BLUETOOTH® device pairing, a near-field communication device pairing, and a near-field communication-peer-to-peer device pairing. ### Claim 3 (depends on 1) The method of claim 1 wherein determining when the peer-to-peer device pairing terminates comprises detecting a completion of a peer-to-peer activity. ### Claim 4 (depends on 3) The method of claim 3 wherein the peer-to-peer activity includes one of a file transfer, a bandwidth sharing activity, a telephone call, a synchronization activity, a wireless input device activity, and a printing activity. ### Claim 5 (depends on 1) The method of claim 1 wherein determining when the peer-to-peer device pairing terminates comprises detecting a decoupling of a peer-to-peer device. ### Claim 6 (depends on 1) The method of claim 1 wherein determining when the peer-to-peer device pairing terminates comprises detecting a period of inactivity exceeding a predetermined timeout period. ### Claim 7 (depends on 1) The method of claim 1 further comprising: obtaining a command to save the pairing information; deleting the pairing information; and automatically re-establishing the peer-to-peer device pairing using one of the pairing information or second pairing information. ### Claim 8 (depends on 7) The method of claim 7 further comprising storing the pairing information in a permanent storage. ### Claim 9 (depends on 7) The method of claim 7 further comprising establishing a permanent peer-to-peer pairing upon obtaining the command to save the peer-to-peer device pairing. ### Claim 10 An electronic device comprising: a communication interface; a processor configured to execute instructions for: determining when a peer-to-peer device pairing terminates; in response to determining the peer-to-peer device pairing is terminated, prompting whether to save the pairing information; deleting the pairing information and rendering a user-selectable icon on the device to re-establish the peer-to-peer device pairing in response to termination; and storing pairing information for the peer-to-peer pairing in response to receiving a command to re-establish the peer-to-peer device paring. ### Claim 11 (depends on 10) The electronic device of claim 10 wherein the processor is further configured to terminate the peer-to-peer device pairing upon detecting at least one of completion of a peer-to-peer activity, decoupling of a peer-to-peer device and a period of inactivity exceeding a predetermined timeout period. ### Claim 12 (depends on 10) The electronic device of claim 10 wherein the processor is further configured to execute instructions to: obtaining a command to save the pairing information; deleting the pairing information; and automatically re-establishing the peer-to-peer device pairing using one of the pairing information or second pairing information. ### Claim 13 (depends on 12) The electronic device of claim 12 wherein the processor is further configured to execute instructions for storing the pairing information in a permanent storage. ### Claim 14 (depends on 12) The electronic device of claim 12 wherein the processor is configured to display a user-selectable icon prompting whether to save the pairing information. ### Claim 15 (depends on 12) The electronic device of claim 12 wherein the processor is further configured to execute instructions to establish a permanent peer-to-peer device pairing upon obtaining the command to save the peer-to-peer device pairing. ### Claim 16 A non-transitory computer-readable storage medium storing instructions which, when executed by a computing device, cause the computing device to perform steps comprising: determining when a peer-to-peer device pairing terminates; in response to determining the peer-to-peer device pairing is terminated, prompting whether to save the pairing information; deleting the pairing information and rendering a user-selectable icon on the device to reestablish the peer-to-peer device pairing in response to termination; and storing pairing information for the peer-to-peer pairing in response to receiving a command to re-establish the peer-to-peer device paring. ### Claim 17 (depends on 16) The non-transitory computer-readable medium of claim 16, further comprising instructions which, when executed by the processor, cause the computing device to terminate the peer-to-peer device pairing upon detecting at least one of completion of a peer-to-peer activity, decoupling of a peer-to-peer device and a period of inactivity exceeding a predetermined timeout period. ### Claim 18 (depends on 16) The non-transitory computer-readable medium of claim 16, further comprising instructions which, when executed by the processor, cause the computing device to: obtain a command to save the pairing information; delete the pairing information; and automatically re-establish the peer-to-peer device pairing using one of the pairing information or second pairing information. ### Claim 19 (depends on 18) The non-transitory computer-readable medium of claim 18, further comprising instructions which, when executed by the processor, cause the computing device to execute instructions for storing the pairing information in a permanent storage.