Motorola Corporation

Frank W Korinek

Jeffrey J Blanchette

Richard Lee Van Egeren

Timothy J Groch

Dominic Lazara

Michael J Batz

A subscriber unit () is gracefully migrated from a selected base transceiver station () to an alternate base transceiver station () by attenuating the communication signals transmitted by the selected base transceiver station (). A subscriber unit () communicatively coupled to the selected base transceiver station () compares the attenuated communication signal strength to communications signals generated by alternate base transceiver stations () until an alternative communication signal having greater signal strength is identified. The subscriber unit () then migrates to the base transceiver station () transmitting the alternative communication signal. The rate of active data packet transmissions to a subscriber unit () is increased by using all available traffic channels to transmit data packet. A message is transmitted to a subscriber unit () attempting to establish communicative coupling with the selected base transceiver station () to delay attempts to initiate a communicative coupling with the wireless communication network ().

Method and apparatus for removing a base transceiver station from a wireless communication system

A radio frequency communication system includes a cell site (FIG.,), the cell site including an on-line controller (,), an off-line controller (,) and one or more peripheral units (,) arranged to support the on-line controller. The cell site is arranged to switch from the on-line controller to the off-line controller based upon a failure of the on-line controller or a failure of any peripheral unit of the one or more peripheral units arranged to support the on-line controller.

Method for switching cell site controllers

The present invention addresses the need for an apparatus and method of determining the reliability of a first signal (e.g., 116) received by a given base site (e.g., 126) without requiring the reception of additional signals (e.g., 110 and 112) by the given base site (126). The present invention provides both a method and apparatus in which another base site (e.g., 122) receives the additional signals (110 and 112) required to determine the reliability of the first signal (116). Upon determining that the first signal (116) is unreliable, the other base site (122) notifies the given base site (126) that the first signal (116) is unreliable.

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South Elgin, IL, United States of America

Frank W Korinek