| Patent Number |
Title Of Patent |
Date Issued |
| 6119010 |
Method and apparatus for adjusting channel powers in a wireless communication system based on a |
September 12, 2000 |
| The present invention provides a method of adjusting channel powers during operation of a wireless communication system. A relatively few pieces of operating data are obtained from the wireless communication system and simulation techniques are used to identify potential system performan |
| 6072778 |
Method of controlling a communication system |
June 6, 2000 |
| A code division multiple access (CDMA) communication system (100) has improved control by accurately characterizing coverage and loading parameters related to the CDMA communication system (100). To accurately characterize coverage and loading parameters related to the CDMA communica |
| 5859839 |
Method for automatically selecting channel powers in a wireless communication system |
January 12, 1999 |
| The method operates in a wireless communication system serving a geographic area. The system includes first and second communication units within the geographic area which have first and second radio frequency (RF) channels associated therewith. The method includes defining a plurality o |
| 5638375 |
AGC isolation of information in TDMA systems |
June 10, 1997 |
| In a communications system having transmissions containing certain information-of-interest at predetermined intervals in the transmission, there is provided a method for isolating and processing that information-of-interest. The method comprises sensing the start of a transmission an |
| 5608854 |
Method and apparatus for displaying information in a communication system |
March 4, 1997 |
| A method and apparatus for understanding information relating to communication system performance, including the dynamic nature of the system is provided. Elements of the system are represented (102, 110) as various shapes (30, 32, 40) defined by an number of different parameters on |
| 5363412 |
Method and apparatus of adaptive maximum likelihood sequence estimation using filtered correlati |
November 8, 1994 |
| A method and apparatus are provided for maximum likelihood sequence estimation. The method and apparatus includes a first maximum likelihood sequence estimator signal path for flat fading and an at least second maximum likelihood sequence estimator signal path for other than flat fad |
| 5309503 |
Dynamic channel assignment in a communication system |
May 3, 1994 |
| A communication system dynamically assigns channels to a subscriber unit so as to, inter alia, mitigate the effects of co-channel interference in the system. The communication system has a plurality of base-stations receiving the transmission of a subscriber unit desiring service. Upon |
| 5271042 |
Soft decision decoding with channel equalization |
December 14, 1993 |
| In a communications network having time-dispersed signals, there is provided a mechanism for soft decision decoding. It comprises: radio reception of a time-dispersed signal, at least partly equalizing those time-dispersal effects, recovering information contained in the signal, mult |
| 5251233 |
Apparatus and method for equalizing a corrupted signal in a receiver |
October 5, 1993 |
| An equalization system for equalizing a corrupted signal is disclosed. The equalization system includes a complex matched filter (400) and a maximum likelihood sequence estimator (MLSE) (405) for removing the effects of phase shift, amplitude variations, intersymbol interference, etc. |
| 5245611 |
Method and apparatus for providing carrier frequency offset compensation in a TDMA communication |
September 14, 1993 |
| The present invention relates to a method and apparatus for providing carrier frequency offset compensation in a time division multiple access (TDMA) communication system. In this effort a TDMA receiver is adapted to receive, via a transmission channel, a transmitted signal burst which |
| 5031193 |
Method and apparatus for diversity reception of time-dispersed signals |
July 9, 1991 |
| A method and appartus for diversity reception in a communication system wherein at least a dual branch receiver is provided with a stored replica of expected reference information that is correlated with the received time-dispersed signals to obtain an estimate of the transmission channe |
| 4873683 |
TDMA radio system employing BPSK synchronization for QPSK signals subject to random phase variat |
October 10, 1989 |
| A time division multiple access (TDMA) radio system conveying a quadrature phase shift keying (QPSK) modulated data signal is disclosed. In order to overcome multipath distortion and phase variation introduced by the radio channel, a synchronizing poriton of a TDMA timeslot is transmitte |
| 4847869 |
Rapid reference acquisition and phase error compensation for radio transmission of data |
July 11, 1989 |
| The method and apparatus for rapid phase acquisition and random radio channel phase error compensation for a TDMA QPSK receiver is disclosed. Received quadrature signals having a known synchronizing sequence transmitted on one of the vectors is correlated to a local replica of the se |
| 4829543 |
Phase-coherent TDMA quadrature receiver for multipath fading channels |
May 9, 1989 |
| A method and apparatus for phase-coherently demodulating a multipath-impaired time division multiple access QPSK data timeslot is disclosed. A quadrature separator generates multipath-impaired intermediate signals which, during a predetermined synchronizing sequence for the timeslot, |
| 4797947 |
Microcellular communications system using macrodiversity |
January 10, 1989 |
| A cellular system employing time division messages transmitted from a plurality of radiators in each cell is disclosed. A first electromagnetic signal at a particular frequency is transmitted during one time slot from one of the plurality of radiators. A second electromagnetic signal at |
| 4761829 |
Adaptive signal strength and/or ambient noise driven audio shaping system |
August 2, 1988 |
| An adaptive audio filter system is disclosed which comprises a filter means capable of producing a plurality of frequency response characteristics. A control signal generating means provides a control signal to the filter means to enable a particular frequency response. The control signa |
| 4654867 |
Cellular voice and data radiotelephone system |
March 31, 1987 |
| A data message transmission system for a cellular radiotelephone system is disclosed. Data to be transmitted is converted into a format compatible with radio transmission prior to transmission. The data is reconverted to its original format following reception. Handoff is accomplished by |
| 4302817 |
Digital Pseudo continuous tone detector |
November 24, 1981 |
| Method and apparatus for sampling input signals of different frequencies and providing a detect signal when the input frequency has a predetermined value suitable for use as a tone decoder for continuous tone controlled squelch systems. The method utilizes digital pseudo continuous corre |
