Evin S Feli

US Patent:

6628955, Sep 30, 2003

Filed:

Jun 14, 2001

Appl. No.:

09/881358

Inventors:

Leonard Lee - Cary NC
Evin Feli - San Diego CA

Assignee:

Ericsson, Inc. - Research Triangle Park NC

International Classification:

H04Q 720

US Classification:

455466, 455423, 455422, 455516

Abstract:

A method and device(s) for increasing the Cellular Digital Packet Data (CDPD) user data rate between a mobile terminal and a basestation in a digital cellular mobile communications system. The method and device(s) use the same modulation scheme that is used for digital speech to encapsulate CDPD block data, specifically, the TIA/EIA-136 standard. The TIA/EIA-136 standard can accommodate more data than the GMSK modulation scheme that is typically used for CDPD block data. In order to encapsulate CDPD block data using the TIA/EIA-136 standard, an encoding step is performed on the sending end that includes constructing a CDPD block comprised of CDPD data, assembling an TIA/EIA-136 frame leaving the data fields of the frame empty, and placing CDPD block data in the data fields. The assembled TIA/EIA-136 frame is then sent using existing transmission code. To unpack the CDPD block data, a decoding step is performed on the receiving end that includes receiving the TIA/EIA-136 frame comprised of CDPD data in the data fields of the TIA/EIA-136 frame, and re-constructing the CDPD block from the data fields.

US Patent:

6728323, Apr 27, 2004

Filed:

Jul 10, 2000

Appl. No.:

09/612713

Inventors:

Dayong Chen - Cary NC
Evin Feli - Cary NC

Assignee:

Ericsson Inc. - Research Triangle Park NC

International Classification:

H04L 2706

US Classification:

375340, 714790

Abstract:

Methods, systems, baseband processors, mobile terminals and base stations are provided for decoding a punctured coded signal are provided. The signal is received to provide received symbols. Symbol positions associated with punctured locations are initialized to default symbol values. The received symbols and the default symbol values are error correction decoded to provide first signal estimates. Punctured location symbol estimates are generated based on the first signal estimates and the received symbols are combined with the punctured location symbol estimates placed in corresponding punctured locations. The combined received symbols with the punctured location symbol estimates are error correction decoded to provide second signal estimates.

US Patent:

6748239, Jun 8, 2004

Filed:

Dec 1, 1999

Appl. No.:

09/452650

Inventors:

Evin Feli - Cary NC

Assignee:

Ericsson Inc. - Research Triangle Park NC

International Classification:

H04B 138

US Classification:

455557, 455560, 455 301, 455445, 37920711, 37922001

Abstract:

Methods, systems and mobile switching centers are provided that communicate a service code designation over a public switched telephone network without requiring two stage dialing. A received service code, for example a request for facsimile transmission services, is converted by the mobile switching center receiving the request to a pilot number. Pilot numbers are coherently (uniquely) associated with each of the possible service codes supported by the communication protocol (such as IS-136) but are in a form which, unlike the service codes, may be transmitted over the PSTN. The conversion may be provided, for example, by a look up table maintained by the mobile switching center. On the destination end, the receiving wireless network mobile switching center may then convert the pilot number to a service code and establish a connection supporting the requested service to the destination device. Accordingly, the wireless device providing the service code may request services for a communication including establishment of a communication channel including the PSTN in the same manner as where the service is provided entirely by wireless networks which support communication of the service codes.

US Patent:

6925059, Aug 2, 2005

Filed:

May 9, 2001

Appl. No.:

09/852332

Inventors:

Evin Feli - San Diego CA, US
Leonard Lee - Cary NC, US
Dayong Chen - Cary NC, US

Assignee:

Ericsson, Inc. - Research Triangle Park NC

International Classification:

H04L012/26

US Classification:

370235, 370477, 455453

Abstract:

Method and apparatus for distributing traffic in a wireless packet data network. A capacity flag which is sent on each RF data channel within a cell in a wireless packet data network is toggled between an asserted and an unasserted state according to the period of a timer. Transceiver terminals will only register for a channel while that channel's capacity flag is unasserted; therefore, transceiver terminals register with the various RF channels in a cell in a distributed fashion over time. The invention can be implemented by a computer program product or logic, or a combination of the two installed at the base station for a cell within a wireless data network such as a CDPD network.

US Patent:

6459907, Oct 1, 2002

Filed:

Jul 27, 1999

Appl. No.:

09/361940

Inventors:

Evin Feli - Apex NC

Assignee:

Ericsson Inc. - Research Triangle Park NC

International Classification:

H04Q 720

US Classification:

455557, 455511, 455553, 37910001, 37910013, 37910017, 379 9309, 379 9315

Abstract:

Communication systems and methods are provided for selecting a channel for transmission of a facsimile utilizing a wireless communication network which has two different channel types available for wireless communications. In particular, systems and methods are provided which preferentially request one of the service types for a transmission of a facsimile but further provides for use of the alternate service type under conditions where a suitable channel is not available for the preferred facsimile support channel. More particularly, in one embodiment, when digital transmission services are not available, but analog services are available, facsimile transmission is provided over the analog channel rather than denying access to the wireless communication network for transmission of the facsimile.