EP1985068A1

5G

Title

COMMUNICATION METHODS AND APPARATUS USED IN THE ABSENCE OR PRESENCE OF BEACON SIGNALS

Application Number:

EP20070701222

Publication Date:

29-10-2008

Current Assignee:

QUALCOMM INC

Family ID:

37908065

Application Date:

10-01-2007

Declaring Company:

QUALCOMM INC

Publication Country:

US

Priority Date:

11-01-2006

View on Espacenet goto-link

Title

COMMUNICATION METHODS AND APPARATUS USED IN THE ABSENCE OR PRESENCE OF BEACON SIGNALS

Application Number:

EP20070701222

Family ID:

37908065

Publication Country:

US

Publication Date:

29-10-2008

Application Date:

10-01-2007

Priority Date:

11-01-2006

Current Assignee:

QUALCOMM INC

Declaring Company:

QUALCOMM INC

View on Espacenet goto-link

Abstract  Abstract

Wireless devices, e.g., in a cognitive radio network, discover and use locally available usable spectrum for communication. Beacon signaling facilitates available spectrum discovery, spectrum usage coordination, and device identification. A wireless terminal, which may have entered a new area and powered up, monitors to detect for the presence of beacon signals in a communications band. When the wireless terminal fails to detect a beacon, the wireless terminal assumes that the spectrum is available and transmits its user beacon signal thereby providing notification of its presence in the area to other wireless terminals. The wireless terminal maintains a coordinated timing relationship between its beacon transmit interval and beacon detect interval, which are performed on an ongoing basis. The combination of beacon TX interval and beacon monitoring interval represents a small fraction of total time, allowing for power conservation. The coordinated timing relationship, known to peers, facilitates efficient pccr-pccr communications session establishment.

Note:

The information in blue was extracted from the third parties (Standard Setting Organisation, Espacenet)

The information in grey was provided by the patent holder

The information in purple was extracted from the FrandAvenue

Explicitly disclosed patent:openly and comprehensibly describes all details of the invention in the patent document.

Implicitly disclosed patent:does not explicitly state certain aspects of the invention, but still allows for these to be inferred from the information provided.

Basis patent:The core patent in a family, outlining the fundamental invention from which related patents or applications originate.

Family member:related patents or applications that share a common priority or original filing.

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