Qualcomm Incorporated

Syed Nadeem Ahsan

Baaziz Achour

Robbin D Hughes

Farrukh Usmani

Ravishanker Mudigonda

Jie Si

Rilun Tang

A method for dynamic sector creation is disclosed. The method may include determining that a first sector of a cell is overloaded. The method may also include creating a second sector within the first sector. The method may further include transferring one or more mobile stations from the first sector to the second sector.

Dynamic sectors in a wireless communication system

Systems and methods for improving the performance of wireless telecommunications networks by reducing data communications between a mobile station and a base station. One embodiment of the invention is implemented in an IS2000 (cdma2000) network. This network communicates data from a base station to a mobile station over a supplemental forward channel. In order to maintain the best communication channel for data transmissions, the mobile station monitors the signals received from an active set of base stations and identifies the strongest signal of a reduced active set so that the corresponding base station can be selected for data communications. Upon the occurrence of conditions indicating that a new base station within the reduced active set should be selected, the mobile station provides a notification to the base stations in the reduced active set so that further data transmissions will be made by the newly selected base station.

Data throughput improvement in IS2000 networks via effective F-SCH reduced active set pilot switching

A method to enhance performance of a dual-mode or dual-band mobile phone includes, after the phone has initially connected to a CDMA wireless network, monitoring a level of total power received by the phone. This power level is compared to a preset threshold level. If the power level remains below the threshold level for over two seconds, the dual-mode or dual-band phone switches to an AMPS or other network retrieved from the preferred roaming list that is stored in the phone. If the power level is above the threshold, the phone moves into the idle state. Once in the idle state, both the pilot strength and Received Signal Strength Indication are monitored. If both of these levels are below respective thresholds for over eight seconds, the phone switches to another network stored in the preferred roaming list. If the mobile phone is not a dual-mode or dual-band phone, the mobile phone can perform similar measurements and switch between service provider systems compatible with the mobile phone.

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San Diego, CA, United States of America

Syed Nadeem Ahsan