Lucent Technologies Inc.

Orlett Wanda Pearson

David A Rossetti

Lily H Zhu

Michael F Dolan

Douglas Norman Knisely

John Kenney Burgess

Eshwar Pittampalli

Nick John Mazzarella

In a wireless communication system, a method includes monitoring an error condition on an active communication channel, establishing a simultaneous communication channel, and searching the simultaneous communications channel while continuing to monitor the active communication channel.

Wireless communication system enhanced call recovery

Multiple carriers are used to provide access to a wireless communication system. A first carrier transmits synchronization messages in accordance with the IS-95B standard (communication protocol revision 5). The synchronization message directs mobiles attempting to access the network to a paging channel on the first carrier. The paging channel enables mobiles conforming to a standard of IS-2000 revision 0 or older to access the wireless network. The paging channel also includes an extended global service redirection message (EGSRM) that instructs mobiles conforming to the IS-2000 revision A standard (communication protocol revision 7) to use a synchronization channel on a second carrier for reception of an IS-2000 revision A synchronization message. The IS-2000 revision A (communication protocol revision 7) synchronization message instructs the mobile to access the wireless communication network using a BCCH and/or FCCCH on the second carrier, or using a BCCH and/or FCCCH on the first carrier.

Multi-carrier method for providing access to a wireless communication system

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Naperville, IL, United States of America

Orlett Wanda Pearson