Method and System for Broadband Near-Field Communication Utilizing Full Spectrum Capture (FSC) Supporting Screen and Application Sharing

• US 20170111758A1
• Filed: 12/27/2016
• Published: 04/20/2017
• Est. Priority Date: 02/15/2012
• Status: Active Grant

• Current Assignee: Entropic Communications, LLC (SoftBank Group Corp.)
• Original Assignee: Maxlinear Incorporated
• Inventors: Ling, Curtis, Gallagher, Timothy
• Granted Patent: US 9,913,082 B2
• Time in Patent Office: Days
• CPC Class Codes: G01S 11/06 using intensity measurements
• CPC Class Codes: G06F 3/0481 based on specific properties of the displayed interaction object or a metaphor-based environment, e.g. interaction with desktop elements like windows or icons, or assisted by a cursor's changing behaviour or appearance
• CPC Class Codes: H04B 17/309 Measuring or estimating channel quality parameters
• CPC Class Codes: H04B 17/318 Received signal strength
• CPC Class Codes: H04B 5/00 Near-field transmission systems, e.g. inductive or capacitive transmission systems
• CPC Class Codes: H04B 5/79 for data transfer in combination with power transfer
• CPC Class Codes: H04B 7/18517 Transmission equipment in earth stations
• CPC Class Codes: H04W 12/08 Access security
• CPC Class Codes: H04W 4/80 Services using short range communication, e.g. near-field communication [NFC], radio-frequency identification [RFID] or low energy communication
• CPC Class Codes: H04W 52/283 Power depending on the position of the mobile
• CPC Class Codes: H04W 72/0453 Resources in frequency domain, e.g. a carrier in FDMA
• CPC Class Codes: H04W 76/10 Connection setup
• CPC Class Codes: H04W 84/18 Self-organising networks, e.g. ad-hoc networks or sensor networks

Abstract

A wireless communication device (WCD) establishes an ad-hoc communication link with a second WCD within operating range. A replica of at least a portion of a display of the first WCD may be shared with the second WCD utilizing wireless broadband signals that are communicated via the established one or more ad-hoc communication links. The first WCD and the second WCD are operable to communicate the wireless broadband signals at a power level that is below a spurious emissions mask. The transmitted wireless broadband signals are spread so they occupy a designated frequency spectrum band. The shared replica of at least a portion of the display of the first WCD includes one or more applications, text, video and/or data content. A user of the first WCD may interact with content that is displayed on a display of the second WCD and vice-versa.

Claims

1. A method, comprising:

in a first wireless communication device;

receiving a first wireless signal from a second wireless communication device;

estimating a relative distance to the second wireless communication device according to a power level of the first wireless signal;

transmitting security information to the second wireless communication device according to the relative distance;

establishing an ad-hoc communication link with the second wireless communication device; and

sharing a replica of at least a portion of a display of the first wireless communication device with the second wireless communication device utilizing a second wireless signal that is communicated via the established ad-hoc communication link, wherein;

said first wireless communication device is operable to communicate the second wireless signal at a power level that is below a spurious emissions mask; and

the second wireless signal is a broadband signal in a designated frequency spectrum band.

21. The method according to claim 1, comprising utilizing the first wireless signal to power the transmitting of the second wireless signal.

22. The method according to claim 1, wherein the replica of the at least a portion of the display of the first wireless communication device comprises one or more applications, text, video and/or data content.

23. The method according to claim 1, comprising interacting with content that is displayed on a display of the second wireless communication device.

24. The method according to claim 23, comprising determining whether to utilize security for one or both of the sharing and/or the interaction.

25. The method according to claim 23, wherein the security is based on one or both of proximity of the first wireless communication device to the second wireless communication device and/or one or more corresponding profiles associated with the first wireless communication device and the second wireless communication device.

26. The method according to claim 1, wherein:

the second wireless communication device establishes a new ad-hoc communication link with a third wireless communication device; and

the second wireless communication device is operable to communicate, at a power level that is below the spurious emissions mask, with the third wireless communication device utilizing a third wireless signal via the established new ad-hoc communication link.

27. The method according to claim 26, wherein the second wireless communication device shares a replica of at least a portion of a display of the second wireless communication device with the third wireless communication device via the established new ad-hoc communication link.

28. The method according to claim 27, wherein the sharing of the replica of the at least the portion of the display of the first wireless communication device and the sharing by the second wireless communication device occurs concurrently.

29. The method according to claim 1, wherein the established ad-hoc communication link comprises a bi-directional communication link.

2-20. -20. (canceled)

30. A system in a first wireless communication device, comprising:

a receiver operable to receive a first wireless signal from a second wireless communication device;

a processor operable to;

determine a distance to the second wireless communication device based on a power level of the first wireless signal at the receiver,

establish an ad-hoc communication link with the second wireless communication device, and

share a replica of at least a portion of a display of the first wireless communication device with the second wireless communication device utilizing a second wireless signal that is communicated via the established ad-hoc communication link; and

a transmitter operable to transmit security information to the second wireless communication device according to the distance, the second wireless signal being a broadband signal having a power level below a spurious emissions mask in a designated frequency spectrum band.

31. The system according to claim 30, wherein the one or more circuits are operable to:

spread the wireless signals having the power level that is below the spurious emissions mask across the entire designated frequency spectrum band, wherein;

a bandwidth of the wireless signals occupy approximately 800 MHz within a range of 0 Hz to 1 GHz;

a corresponding transmit power utilized for the transmitting of the wireless signals is spread over a bandwidth of approximately 300 MHz within the 800 MHz bandwidth; and

the wireless signals are spread so that a power spectral density of the transmitted wireless signals approximating thermal noise at a distance of approximately 3 meters.

32. The system according to claim 30, wherein the shared replica of the at least a portion of the display of the first wireless communication device comprises one or more applications, text, video and/or data content.

33. The system according to claim 30, wherein the one or more circuits are operable to enable interaction with content that is displayed on a display of the second wireless communication device.

34. The system according to claim 33, wherein the one or more circuits are operable to determine whether to utilize security for one or both of the sharing and/or the interaction.

35. The system according to claim 33, wherein the security is based on one or both of proximity of the first wireless communication device to the second wireless communication device and/or one or more corresponding profiles associated with the first wireless communication device and the second wireless communication device.

36. The system according to claim 30, wherein:

the second wireless communication device is operable to establish a new ad-hoc communication link with a third wireless communication device; and

the second wireless communication device is operable to communicate, at a power level that is below the spurious emissions mask, with the third wireless communication device utilizing a third wireless signal via the established new ad-hoc communication link.

37. The system according to claim 36, wherein the second wireless communication device shares a replica of at least a portion of a display of the second wireless communication device with the third wireless communication device via the established new ad-hoc communication link.

38. The system according to claim 37, wherein the sharing of the replica of the at least the portion of the display of the first wireless communication device and the sharing by the second wireless communication device occurs concurrently.

39. The system according to claim 30, wherein the established ad-hoc communication link comprises a bi-directional communication link.