Juan E Silva

US Patent:

6934555, Aug 23, 2005

Filed:

Jun 29, 2001

Appl. No.:

09/896369

Inventors:

Juan J. Silva - San Diego CA, US
Mauricio Guerra - San Diego CA, US
Reza Shahidi - San Diego CA, US

Assignee:

Telefonaktiebolaget LM Ericsson (publ)

International Classification:

H04B007/00

US Classification:

455522, 455 69, 455450, 4554522

Abstract:

A wireless network planning tool simulates wireless network operation, including subscriber admission processing based resource reservation procedures. Simulated subscribers are associated with an application type. Application types are broadly categorized as either voice type or data type applications. Subscribers of both types are simultaneously simulated. During subscriber admission processing, the CDMA planner attempts to admit simulated subscribers to individual sectors or base stations. At each sector, a percentage of the total forward power capacity is reserved for voice users, and a second or remaining percentage may be reserved for data users. When admitting a voice user to a sector with insufficient remaining power in its voice bucket, the CDMA planner may borrow from the power bucket reserved for data users. Setting aside a power bucket for voice users at each sector insures that one or a few high data rate users do not consume all available resources in a sector.

US Patent:

7046640, May 16, 2006

Filed:

Jun 29, 2001

Appl. No.:

09/896564

Inventors:

Juan J. Silva - San Diego CA, US
Mauricio Guerra - San Diego CA, US
Reza Shahidi - San Diego CA, US

Assignee:

Telefonaktiebolaget LM Ericsson (publ)

International Classification:

H04B 7/216
H04Q 7/34

US Classification:

370318, 455522, 370342

Abstract:

A wireless network planning tool simulates wireless network operation, including subscriber admission processing, based on sophisticated reverse and forward link analyses that include data fall back procedures. Subscribers are associated with an application type, where each application type preferably has maximum and minimum data rates and one or more fall back rates. During simulation, the tool may use fall back when evaluating forward and reverse communication links between subscribers and their associated sectors (base stations). A subscriber unable to close a reverse link to a given sector at a given data rate, may be re-evaluated at a lower rate under fallback procedures. Forward link analysis incorporates similar fallback procedures in forward link call admission. Fallback procedures include appropriate supplemental channel adjustments, and corresponding forward and reverse link power adjustments reflecting adjusted data rates. Forward and reverse link fallback procedures are independent and allow for different data rates for each link.