Transmitting station for wireless telephone system with diversity transmission and method

Patent 6804207 Issued on October 12, 2004. Estimated Expiration Date:

March 12, 2022. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.

Abstract Claims Description Full Text

Patent References

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Inventors

Assignee

InterDigital Technology Corporation

Application

No. 10095728 filed on 03/12/2002

US Classes:

370/320, Code division (CDMA)370/335, Combining or distributing information via code word channels using multiple access techniques (e.g., CDMA)370/342, Combining or distributing information via code word channels using multiple access techniques (e.g., CDMA)370/441Combining or distributing information via code word channels using multiple access techniques (e.g., CDMA)

Examiners

Primary: Duong, Frank

Attorney, Agent or Firm

Volpe and Koenig, P.C.

Foreign Patent References

0528090 EP 02/01/1993
2237706 GB 05/01/1991
2259430 GB 03/01/1993
9306669 WO 04/01/1993

International Class

H04B 7216

Abstract

A transmitting station for communicating data in a CDMA cellular system that utilizes transmission diversity by transmitting a plurality of PN spread spectrum signals. The transmitting station spreads and modulates the data with a plurality of different PN codes to form a plurality of PN spread spectrum modulated data signals. A transmitter transmits the PN spread spectrum modulated data signals from the transmitting station. Preferably, the transmitter includes multiple spaced apart antennas from which the respective PN spread spectrum modulated data signals are transmitted. Preferably, the transmitter is configured to transmit the PN spread spectrum modulated data signals as a plurality of time slotted PN spread spectrum signals, each PN spread spectrum modulated data signal in a different time slot. In one embodiment, a PN code generator operates in conjunction with the forming the PN spread spectrum modulated data signals during different time intervals corresponding to the different time slots so that the PN codes used to spread the data are part of a PN code sequence produced by the PN code generator without resetting.

Other References

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