| Patent Number |
Title Of Patent |
Date Issued |
| 7555068 |
Producing control signals indicating transmit diversity and no transmit diversity |
June 30, 2009 |
| A circuit is designed with a measurement circuit (746) coupled to receive an input signal from at least one of a first antenna and a second antenna of a transmitter. The measurement circuit produces an output signal corresponding to a magnitude of the input signal. A control circuit (726 |
| 6798737 |
Use of Walsh-Hadamard transform for forward link multiuser detection in CDMA systems |
September 28, 2004 |
| A station capable of receiving information containing Walsh coding for a plurality of channels and canceling interference from the received information and the method of cancellation. A memory is provided for storing received signals containing a Walsh code for each of a plurality of |
| 6728302 |
STTD encoding for PCCPCH |
April 27, 2004 |
| A circuit is designed with a measurement circuit (746) coupled to receive an input signal from at least one of a first antenna and a second antenna of a transmitter. The measurement circuit produces an output signal corresponding to a magnitude of the input signal. A control circuit (726 |
| 6483821 |
CDMA mobile communications system and method with improved channel estimation and pilot symbol t |
November 19, 2002 |
| The present invention is an improved system and method for transmitting and receiving digital information over mobile communication channels. The present invention includes an enhanced channel estimator (34) which iteratively estimates channel amplitude and phase distortion from received |
| 6404826 |
Iterative signal-to-interference ratio estimation for WCDMA |
June 11, 2002 |
| A circuit is designed with an estimate circuit (132) coupled to receive a plurality of predetermined signals (416-418) from an external source. Each of the predetermined signals is spaced apart in time. The estimate cit produces a first estimate signal in response to at least one of the |
| 6356605 |
Frame synchronization in space time block coded transmit antenna diversity for WCDMA |
March 12, 2002 |
| A circuit is designed with a correction circuit (350) coupled to receive a first estimate signal (.alpha..sub.j.sup.1), a second estimate signal (.alpha..sub.j.sup.2), and a plurality of input signals from an external source along plural signal paths. The plurality of input signals inclu |
| 6345069 |
Simplified cell search scheme for first and second stage |
February 5, 2002 |
| A circuit for detecting a signal is designed with a first serial circuit coupled to receive an input signal in response to a clock signal. The first serial circuit (121) has N taps (142-146) arranged to produce a respective plurality of first tap signals from the input signal (111). A |
| 6331975 |
User data indicator for discontinuous transmission |
December 18, 2001 |
| A communication circuit is designed with a processing circuit (11) coupled to receive a plurality of first control signals (40-45) and a second control signal (46) from a source external to the communication circuit during a predetermined time (49). The plurality of first control signals |
| 6166622 |
Time slot structure for improved TPC estimation in WCDMA |
December 26, 2000 |
| A communication circuit is designed with a processing circuit (11) coupled to receive a plurality of first control signals (402, 408) from a source external to the communication circuit. The processing circuit produces a second control signal (432, 434) and a second power control (422, 4 |
