发明名称 Methods and apparatus for improving peer communications using an active communication mode
摘要 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.
申请公布号 US9214988(B2) 申请公布日期 2015.12.15
申请号 US201213668825 申请日期 2012.11.05
申请人 QUALCOMM Incorporated 发明人 Hillan John;Haverinen Anssi Kaleva
分类号 H04B5/02;H04W4/00;H04W74/08 主分类号 H04B5/02
代理机构 代理人 Hanasz Joseph
主权项 1. A method of wireless communications, comprising: sensing an operating volume for a presence of a field generated by a remote near field communication (NFC) device as part of an active communication mode collision avoidance procedure; determining that no field is sensed within the operating volume of an NFC device; initiating an unmodulated carrier as part of switching an operating field for the NFC device to an on state; and maintaining the unmodulated carrier for a collision avoidance threshold duration of time.
地址 San Diego CA US