Patent · US Active

Method and apparatus for secondary sharing

US8874122B2 · kind B2 · utility

0Cited by

1References

18Claims

0Family size

Assignee

Telefonaktiebolaget LM Ericsson (Publ) · SE

Inventors

Jorgen Karlsson · Sundbyberg, SE
Tim Irnich · Neuss, DE
Jonas Kronander · Knivsta, SE
Mikael Prytz · Åkersberga, SE
Muhammad Imadur Rahman · Sollentuna, SE

Key dates

Filing date	Jul 13, 2010
Grant date	Oct 28, 2014
Priority date	—
Expiry date	Jul 13, 2030

Classification

Technology area (CPC H)Electricity
CPC primaryH04W16/14
WIPO fieldDigital communication
WIPO sectorElectrical engineering

Abstract

A node (105, 200) for a communications system (100), arranged to operate as a secondary user of part of a frequency spectrum, comprising a detection unit (210) for detecting other secondary users (110) who use all or part of said frequency spectrum and for detecting changes in such other secondary user's usage of their part of the frequency spectrum. The node (105, 200) also comprises a signaling unit (225) for signaling to detected other secondary users (110) that the node (105, 200) wishes to operate within their frequency spectrum as a secondary user, by means of transmitting interference signals according to a predefined pattern in the frequency spectrum of detected other secondary users. The node also comprises a decision unit (230) for deciding how the node (105, 200) should arrange its secondary operation in the frequency spectrum together with detected other secondary users (110).

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.