Title:
パケットデータ通信システムにおける移動度の影響を軽減する方法及び装置
Document Type and Number:
Japanese Patent JP2007503762
Kind Code:
A
Abstract:
A method and apparatus for mitigating the impact of lost data due to cell reselection for mobile stations operating in packet data transfer mode is described. A mobile station may perform cell reselection 2 to 4 times per minute when located in an urban area, even if the mobile station remains stationary. A mobile station moving through a communications network (100) may cross over various cell and routing area boundaries. Further, a mobile station operating in push-to-talk mode may lose up to 8 seconds of data when reselecting a cell in a new routing area. A serving cell transmits an information element (301, 303, 305) in which the mobile station is informed whether cells in its neighbor list are in the same routing area as its serving cell. If the radio link to the serving cell is acceptable then the mobile station avoids reselection to cells outside its serving cell routing area.
Inventors:
Peissen, Mark Ei.
Howell, Stephen A.
Kotzin, Michael Di.
Howell, Stephen A.
Kotzin, Michael Di.
Application Number:
JP2006524694A
Publication Date:
February 22, 2007
Filing Date:
August 11, 2004
Export Citation:
Assignee:
MOTOROLA INCORPORATED
International Classes:
H04W36/12; H04L12/56; H04W36/08; H04W4/10; H04W36/10; H04W36/26; H04W40/36
Attorney, Agent or Firm:
Mamoru Kuwagaki