Ching Yi Huang

US Patent:

6535736, Mar 18, 2003

Filed:

Dec 11, 1998

Appl. No.:

09/210019

Inventors:

Dan Anthony Balogh - Madison NJ
John K. Burgess - Morristown NJ
Terry Si-Fong Cheng - Randolph NJ
Ching Yao Huang - Randolph NJ
Shawn S. Yu - Naperville IL

Assignee:

Lucent Technologies Inc. - Murray Hill NJ

International Classification:

H04Q 720

US Classification:

455434, 455450, 455515

Abstract:

The present invention, in illustrative embodiments, implements systems and methods for adjusting the timing of access requests in mobile communications systems, such as IS-95-A mobile telephone systems, to reduce the likelihood of request collisionsâespecially during periods of very high calling rates. These embodiments employ measurements of access channel occupancy, as well as system operator inputs, to develop thresholds and parameter translations at a base station. Execution of control algorithms at a base station advantageously yields modified persistence test parameters sent to mobile stations. When overload conditions are present, these modified parameters cause the mobile stations to experience variable delays through judicious control of persistence testing at the mobile stations.

US Patent:

6842441, Jan 11, 2005

Filed:

Dec 19, 2000

Appl. No.:

09/740124

Inventors:

Dan Anthony Balogh - Madison NJ, US
John K. Burgess - Morristown NJ, US
Terry Si-Fong Cheng - Singapore, SG
Ching Yao Huang - Randolph NJ, US
Stanley Vitebsky - Parsippany NJ, US

Assignee:

Lucent Technologies Inc. - Murray Hill NJ

International Classification:

H04Q 700

US Classification:

370332, 370436, 370441, 370462

Abstract:

A method and apparatus for transmitting a burst of data over a supplemental channel on just one leg of a handoff by changing the maximum allowed burst duration of the data to be transmitted over the supplemental channel as a function of the future and/or current characteristics of the communication link of the leg(s) of the handoff. The data is then transmitted over just one leg of handoff using the maximum allowed burst duration. By changing the parameters of the data, the data may still be acceptably received at the mobile terminal over just one leg of the soft handoff even when the strength of the pilot signal used for the supplemental channel changes significantly. In an illustrative embodiment of the invention the stability of the communication link is used as a way of ascertaining the future conditions of the communications link.