Method and apparatus for tracking mobile stations in a wireless

Details Method and apparatus for tracking mobile stations in a wireless Method and apparatus for tracking mobile stations in a wireless

1997-07-24

1999-08-24

Eisenzopf, Reinhard J.

Telecommunications

Radiotelephone system

Zoned or cellular telephone system

455440, H04B 100

Patent

active

059436212

ABSTRACT:
A method and apparatus in a communications system for tracking mobile stations. The length and identify of the path of the mobile station is tracked at the mobile station. The path is monitored for a presence of a loop. In response in identifying the presence of a loop, the loop is removed from the path, wherein the length of the path is reduced. Additionally, the length of the path is compared to a threshold and a location update is performed in response to the length of the path being greater than the threshold. The threshold may also be updated at a MSC and then sent to the mobile station.

REFERENCES:
patent: 5390234 (1995-02-01), Bar-Noy et al.
patent: 5408683 (1995-04-01), Ablay et al.
patent: 5629975 (1997-05-01), Tiedemann, Jr. et al.
Akyildiz and Ho, "Movement-Based Location Update and Selective Paging for PCS Networks", vol. IV, No. 4, Aug. 4, 1996, pp. 629-638.
Akyildiz and Ho, "Dynamic Mobile User Location Update for Wireless PCS Newtorks", ACM-Batzer Wireless Networks Journal, vol. 1, No. 2, Jul. 1995, pp. 187-196.
Ho and Akylidiz, "Mobile User Location Update and Paging Under Delay Constraints", ACM-Baltzer Wireless Networks Journal, vol. 1, No. 4, Dec. 1995, pp. 413-425.

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