Title:
空中セルラーシステム用のハンドオフ先候補リスト
Document Type and Number:
Japanese Patent JP2005500722
Kind Code:
A
Abstract:
A terrestrial cell site handoff list is dynamically maintained for an airborne cellular system (10). A beam pattern is maintained relative to an airborne cellular system repeater, but rotates relative to the geographic area of coverage. A location and heading of the airplane (35), locations of respective beams transmitted from the airplane based on airplane flight pattern data, and locations of respective cell sites within a vicinity of footprints of the respective beams transmitted from the airplane are determined. A list of viable handoff terrestrial cell site candidates is then calculated based on the beam pattern, the location and heading of the airplane, the locations of respective beams transmitted from the airplane based on airplane flight pattern data, and the locations of respective cell sites.
Inventors:
Gross, Jonathan H.
Emmons, Thomas Peter Jr.
Tessler, Michael A.
Emmons, Thomas Peter Jr.
Tessler, Michael A.
Application Number:
JP2003509670A
Publication Date:
January 06, 2005
Filing Date:
June 29, 2001
Export Citation:
Assignee:
MOTOROLA INCORPORATED
International Classes:
H04B7/185; H04B7/26; H04W36/00; H04W64/00; H04W84/06; (IPC1-7): H04Q7/22; H04B7/185; H04B7/26
Attorney, Agent or Firm:
Mamoru Kuwagaki