Method and system of spread spectrum modulation

Details Method and system of spread spectrum modulation Method and system of spread spectrum modulation

2007-03-27

2007-03-27

Beamer, Temica (Department: 2617)

Telecommunications

Receiver or analog modulated signal frequency converter

Signal selection based on frequency

C455S436000, C370S342000, C370S341000, C370S331000, C370S335000

Reexamination Certificate

active

10178426

ABSTRACT:
A method and system of communicating between a base station and a mobile station is disclosed. The base station may be the core of a cell site, which is defined by radio frequency radiation patterns. The cell site may be divided into a number of sectors, each defined respectively by radiation patterns. The mobile station, while within any of the sectors of the cell site, may communicate with the base station on a reverse link by encoding signals using a spreading sequence offset by a common time delay. On the forward link, each sector is assigned a respective time delay that is within the common time delay. While within a respective sector of the cell site, the mobile station may receive signals from the base station on the forward link that have been encoded with the spreading sequence offset by the sector's respective time delay.

REFERENCES:
patent: 6272122 (2001-08-01), Wee
patent: 6449290 (2002-09-01), Willars et al.
patent: 6456652 (2002-09-01), Kim et al.
patent: 6744747 (2004-06-01), Shiu et al.
patent: 6748213 (2004-06-01), Kim
Joseph C. Liberti & Theodore Rappaport, Smart Antennas for Wireless Communications—IS-95 and Third Generation CDMA Applications, Prentice Hall 1999, p. 42-47.
Scott Baxter, Course RF, Chapter 7: “Technical Introduction to CDMA,” Jan. 2000, p. 1-150.

Affiliated with

Also associated with

Rating

Method and system of spread spectrum modulation does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method and system of spread spectrum modulation, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and system of spread spectrum modulation will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3745947