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Methods and apparatus for improving peer communications using an active communication mode

A peer-to-peer communication and active communication technology, applied in the directions of using transceiver near-field transmission systems, wireless communication, wireless communication services, etc., can solve the problems of different, no shared power consumption, waste of power, etc.

Inactive Publication Date: 2014-10-08
QUALCOMM INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

While this does allow operation of the NFC-DEP protocol, it has different issues for implementation in handheld NFC devices
First, because the carrier must remain continuous in passive communication mode, a lot of power can be wasted while the two devices are processing information exchanged between them, even though nothing is actually being transmitted
Second, power consumption is not shared equally between the two devices
Third, the passive communication mode has limitations in some features, such as a limitation on data rates of 424kbps and lower, and cannot perform multi-activation

Method used

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  • Methods and apparatus for improving peer communications using an active communication mode
  • Methods and apparatus for improving peer communications using an active communication mode
  • Methods and apparatus for improving peer communications using an active communication mode

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Embodiment Construction

[0033] Various aspects are now described with reference to the figures. In the following description, for purposes of explanation, numerous specific details are set forth in order to provide a thorough understanding of one or more aspects. It may be evident, however, that the aspects may be practiced without these specific details.

[0034] Typically, a device can identify an NFC target device and / or tag when it is within the coverage area of ​​the NFC device and / or tag. Thereafter, the device can obtain enough information to allow communication to be established. One form of communication that can be established is a peer-to-peer communication link. As described herein, communications enabled over a peer-to-peer communications link may use either a passive communications mode or an active communications mode. In passive communication mode, each peer maintains its state as polling device or listening device for the entire established link. In active communication mode, eac...

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PUM

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Abstract

Aspects disclosed herein relate to providing peer communications between NFC enabled devices using an active communication mode. In one example, a communications device is equipped to detect a remote NFC device field within an operating volume, establish a peer communication link with the remote NFC device using an active communication mode, determine that the peer communication link is to be deselected, and transmit a deselection request message to the remote NFC device indicating to the remote NFC device that it has been deselected while maintaining the peer communication link. In another example, a communications device is equipped to sense an operating volume, as part of an active communication mode collision avoidance procedure, determine that no field is sensed, initiate an unmodulated carrier as part of switching an operating field to an on state, and maintain the unmodulated carrier for a collision avoidance threshold duration of time.

Description

[0001] Claiming Priority Based on 35 U.S.C. §119 [0002] This patent application claims the benefit of Provisional Application No. 61 / 595,496, filed February 6, 2012, entitled "METHODS AND APPARATUS FOR IMPROVING PEER COMMUNICATIONS USING AN ACTIVE COMMUNICATION MODE," and filed July 9, 2012, Priority of Provisional Application No. 61 / 669,310, entitled "METHODS AND APPARATUS FOR IMPROVING PEER COMMUNICATIONS USING AN ACTIVE COMMUNICATION MODE," both of which have been assigned to the assignee of the present application, are hereby incorporated by reference. The contents of this application are expressly incorporated herein. technical field [0003] In general, the disclosed aspects relate to inter-device and / or intra-device communication, and in particular, the disclosure relates to methods and systems for improving peer-to-peer communication through the use of active communication modes. Background technique [0004] Technological advances have produced smaller and more p...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W4/00H04B5/48H04W4/80
CPCH04W4/008H04W74/0816H04B5/02H04W76/23H04W76/14H04W4/80H04W52/0209Y02D30/70H04B5/48
Inventor J·伊利安A·K·哈韦里宁
Owner QUALCOMM INC