Pulse or digital communications – Repeaters – Testing
Patent
1994-04-04
1995-07-04
Barron, Jr., Gilberto
Pulse or digital communications
Repeaters
Testing
455 542, 455 70, H04J 1304, H04B 7216
Patent
active
054307600
ABSTRACT:
The present invention includes a system and method for minimizing interference between two radio stations, e.g., a mobile radio telephone and a fixed base station, at the initiation of a radio communication. A mobile station initiates a random access at the lowest power level and increases the transmission power level until the base station detects the access signal. Once detected, the power level of the message is maintained at the detected level so that the signal interference is avoided. The present invention also provides a mechanism for synchronizing random access communications between mobile stations and the base station despite variation in distances between the mobile and base stations.
REFERENCES:
patent: 4222115 (1980-09-01), Cooper et al.
patent: 4435840 (1984-03-01), Kojima et al.
patent: 4485486 (1984-11-01), Webb et al.
patent: 4613990 (1986-09-01), Halpern
patent: 4677687 (1987-06-01), Matsuo
patent: 4694467 (1987-09-01), Mui
patent: 4696027 (1987-09-01), Bonta
patent: 4811421 (1989-03-01), Havel et al.
patent: 4870698 (1989-09-01), Katsuyama et al.
patent: 4984247 (1991-01-01), Kaufmann et al.
patent: 5056109 (1991-10-01), Gilhousen et al.
patent: 5151919 (1992-09-01), Dent
Patent Abstracts of Japan, vol. 15, No. 3 (E-1019) 7 Jan. 1990, & JP-A-02 256 331 (Sharp), 17 Oct. 1990.
Patent Abstracts of Japan, vol. 16, No. 188 (E-1198) 7 May 1992, & JP-A-04 023 623 (NEC Corp), 28 Jan. 1992.
Thompson et al., "Automatic Power Control in the PTARMIGAN SCRA Sybsystem," IEE Conference Publication No. 139, 1976.
Barron Jr. Gilberto
Ericsson - GE Mobile Communications Inc.
LandOfFree
Random access in mobile radio telephone systems does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Random access in mobile radio telephone systems, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Random access in mobile radio telephone systems will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-766348