Ching Hsien Huang

US Patent:

6374099, Apr 16, 2002

Filed:

May 10, 1999

Appl. No.:

09/307911

Inventors:

Qi Bi - Morris Plains NJ
Ching Yao Huang - Randolph NJ
Frances Jiang - Whippany NJ
Yuen-Yin L. Koo - Morristown NJ
Amit Shah - North Bergen NJ

Assignee:

Lucent Technologies Inc. - Murray Hill NJ

International Classification:

H04M 1100

US Classification:

455404, 455434, 455450, 455509, 455512, 455515, 370329, 370348

Abstract:

A high priority and/or emergency overload access control system treats a wireless unit as a higher priority wireless unit when the wireless unit is attempting to access a wireless communications system with a high priority call, such as an emergency call. For example, the overload access control system can recognize if the wireless unit is attempting to initiate a call to an emergency number. If so, the wireless unit can perform a persistence test as an emergency class (e. g. overload class ) wireless unit in attempting to access the wireless communications system. Thus, the wireless unit will experience an increased probability of passing the persistence test and thereby reducing the persistence delay in attempting to access the wireless communications system with the emergency call.

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.

US Patent:

6944461, Sep 13, 2005

Filed:

Jun 3, 2002

Appl. No.:

10/161528

Inventors:

Qi Bl - Morris Plains NJ, US
Ching Yao Huang - Randolph NJ, US

Assignee:

Lucent Technologies Inc. - Murray Hill NJ

International Classification:

H04Q007/20

US Classification:

4554522, 455450

Abstract:

A communication system includes a base station and a plurality of remote stations wirelessly communicating with the base station. The base station determines a respective RF quality for each remote station. In response to a request for RF resources from a given remote station, the base station determines whether admission of the given remote station would exceed an RF power budget threshold. If the RF power budget threshold would not be exceeded, the RF quality is compared to a first quality threshold to determine whether to allocate the requested RF resource to the given remote station. Otherwise, the RF quality is compared to a second quality threshold more stringent than the first quality threshold to determine whether to allocate the RF resource to the given remote station. The base station may further determine whether to allocate requested RF resources on the basis of a priority of the requested resources.

US Patent:

7596089, Sep 29, 2009

Filed:

Jun 4, 2002

Appl. No.:

10/160125

Inventors:

Qi Bi - Morris Plains NJ, US
Ching Yao Huang - Randolph NJ, US
Pi-Chun Chen - Lake Hiawatha NJ, US
Patrick Li - Mendham NJ, US
Stanley Vitebsky - Parsippany NJ, US

Assignee:

Alcatel-Lucent USA Inc. - Murray Hill NJ

International Classification:

G01R 31/08

US Classification:

370232, 370235, 3703954, 4554521, 4554522, 455453

Abstract:

In the method, an average user throughout over all active users is computed, and each user's user perceived throughput is compared against the computed average throughout. Based on the comparison, the scheduling of the plurality of users is prioritized. In an embodiment, a priority adjustment factor is applied to each user to prioritize the scheduling of users to receive a data transmission. The priority adjustment factor is determined based in part on an update function. The update function is proportional to a calculated difference between each user's user perceived throughput and the average user throughput. Based on the sign of the update function, the priority adjustment factor is either incremented or decremented, and hence, prioritization of users is ordered. The output of the scheduler is user identifying information that informs the base station to transmit data in a current time slot to the identified user determined as the highest priority user by the scheduling method.

US Patent:

7746779, Jun 29, 2010

Filed:

Nov 21, 2002

Appl. No.:

10/300891

Inventors:

Qi Bi - Morris Plains NJ, US
Ching Yao Huang - Randolph NJ, US
Pi-Chun Chen - Lake Hiawatha NJ, US
Patrick Li - Mendham NJ, US
Stanley Vitebsky - Parsippany NJ, US

Assignee:

Alcatel-Lucent USA Inc. - Murray Hill NJ

International Classification:

G08C 15/00

US Classification:

370232, 370252, 370329, 370433

Abstract:

In the method, scheduling of a plurality of users for receiving transmitted data is prioritized within a communications system. A next data transmission among the plurality of users is allocated based on the prioritized scheduling.