-
公开(公告)号：BR9904246A
公开(公告)日：2000-09-19
申请号：BR9904246
申请日：1999-09-20
Applicant: LUCENT TECHNOLOGIES INC
Inventor： LAHAN MOHAMMAD ALI , LAMOUREUX PHILIP , LEONARD ERIC DAVID
Abstract: Method for automatically determining whether a communication trunk is operating properly without having to take the trunk out of service and without the need of a craftsperson to initiate the testing of the communication trunk. The communication trunk is tested for continuity and integrity on a periodic or aperiodic basis.
-
公开(公告)号：DE602005000379T2
公开(公告)日：2007-10-18
申请号：DE602005000379
申请日：2005-09-22
Applicant: LUCENT TECHNOLOGIES INC
Inventor： LEONARD ERIC DAVID
Abstract: A technique of providing wireless network service utilizes an initial threshold to determine whether a signal received from a cellular device is of sufficient strength to warrant further processing. The technique may be implemented in a power controller of a base station, where the power controller includes an outer loop power control and an inner loop power control. The outer loop power control determines the strength of the received signal and compares it to an initial threshold. If the signal strength is below the initial threshold, the outer loop power control does not process the signal further. However, if the signal strength is above the initial threshold, the outer loop power control determines whether the signal contains any errors. If not, the signal is processed normally. If so, the outer loop power control may increase the signal-to-noise (SNR) threshold of the inner loop power control, which may cause the inner loop power control to attempt to increase the transmission power of the cellular device. By increasing the transmission power of the cellular device, the received signal will typically gain strength, resulting in an error-free signal.
-
Patent Agency Ranking
公开(公告)号：CA2331912C
公开(公告)日：2005-03-15
申请号：CA2331912
申请日：2001-01-23
Applicant: LUCENT TECHNOLOGIES INC
Inventor： LEONARD ERIC DAVID , SUBRAMANIAN SURESH , THOMSON DAVID J
Abstract: A method and apparatus are provided for use in a transceiver of a wireless system that enable analog mode operations to be performed using in-phase (I) and quadrature (Q) values. When operating in the analog mode, the apparatus comprises a process or that receives digital I, Q pairs relating to audio or data signals and performs F M demodulation to generate information content relating to the audio or data signals. When receiving data in the analog mode, the data is in a particular format. In order to decode t he data, the processor looks at each bit of the data for five repeats of Radio Link Words (RLWs) and generates and stores a confidence factor associated with each bit. The confidence factor is based on how closely the waveform represents a 1 or a 0 as well as the signa l strength. If the waveform has relatively little noise and if the RF signal strength is relatively high, the processor assigns more weight to its determination as to whether the wavefor m represents a 1 or a 0. Once this process has been performed for each repeat of the current RLW, the processor takes the sum of the confidence factors associated with each bit a nd compares the sum to a threshold level to determine whether the bit is a 1 or a 0. A signaling tone detection routine is utilized to distinguish between when data isbeing received and when signaling tone is being received.
-
公开(公告)号：AU2326301A
公开(公告)日：2001-09-06
申请号：AU2326301
申请日：2001-02-27
Applicant: LUCENT TECHNOLOGIES INC
Inventor： LEONARD ERIC DAVID , THOMSON DAVID J
Abstract: A method and apparatus are provided for use in a transceiver of a wireless system that enable analog mode operations to be performed using in-phase (I) and quadrature (Q) values. The apparatus comprises a processor that performs FM modulation to generate I, Q pairs when operating in the analog mode. When transmitting in the analog mode, the processor encodes a digital representation of the signal to be transmitted into I, Q pairs and outputs the I, Q pairs to a digital-to-analog converter (DAC) comprised by the apparatus. The DAC converts the digital I, Q pairs into analog signals and outputs the analog signals to a cosine wave generator, which generates an in-phase cosine wave and an out-of-phase cosine wave having amplitudes that are proportional to the I and Q values, respectively. The cosine waves are summed for transmission over air. When receiving in the analog mode, a digital down converter converts the received signal into digital I and Q values. The processor then demodulates the I and Q values into a digital representation of the received signal to extract the signal content. When transitioning from transmitting data to transmitting audio, and vice versa, the processor ensures that abrupt changes in the phases of the I, Q pairs do not occur.
-
公开(公告)号：CA2337927A1
公开(公告)日：2001-09-03
申请号：CA2337927
申请日：2001-02-23
Applicant: LUCENT TECHNOLOGIES INC
Inventor： THOMSON DAVID JAMES , LEONARD ERIC DAVID
Abstract: A method and apparatus are provided for use in a transceiver of a wirele ss system that enable analog mode operations to be performed using in-phase (I) and quadrature (Q) values. The apparatus comprises a processor that performs FM modulation to generate I, Q pairs when operating in the analog mode. When transmitting in the analog mode, the processor encodes a digital representation of the signal to be transmitted into I, Q pairs and outputs the I, Q pairs to a digital-to- analog converter (DAC) comprised by the apparatus. The DAC converts the digital I, Q pairs into analog signals and outputs the analog signals to a cosine wave generator, which generates an in-phase cosine wave and an out-of phase cosine wave having amplitudes that are proportional to the I and Q values, respectively. The cosine waves are summed for transmission over air. When receiving in the analog mode, a digital down converter converts the received signal into digital I and Q values. The processor then demodulates the I and Q valu es into a digital representation of the received signal to extract the signal content. When transitioning from transmitting data to transmitting audio, and vice versa, the processor ensures that abrupt changes in the phases of the I, Q pairs do not occur.
-
公开(公告)号：CA2331912A1
公开(公告)日：2001-09-03
申请号：CA2331912
申请日：2001-01-23
Applicant: LUCENT TECHNOLOGIES INC
Inventor： LEONARD ERIC DAVID , SUBRAMANIAN SURESH , THOMSON DAVID J
Abstract: A method and apparatus are provided for use in a transceiver of a wireless system that enable analog mode operations to be performed using in-phase (I) and quadrature (Q) values. When operating in the analog mode, the apparatus comprises a process or that receives digital I, Q pairs relating to audio or data signals and performs F M demodulation to generate information content relating to the audio or data signals. When receiving data in the analog mode, the data is in a particular format. In order to decode t he data, the processor looks at each bit of the data for five repeats of Radio Link Words (RLWs) and generates and stores a confidence factor associated with each bit. The confidence factor is based on how closely the waveform represents a 1 or a 0 as well as the signa l strength. If the waveform has relatively little noise and if the RF signal strength is relatively high, the processor assigns more weight to its determination as to whether the wavefor m represents a 1 or a 0. Once this process has been performed for each repeat of the current RLW, the processor takes the sum of the confidence factors associated with each bit a nd compares the sum to a threshold level to determine whether the bit is a 1 or a 0. A signaling tone detection routine is utilized to distinguish between when data is being received and when signaling tone is being received.
-
公开(公告)号：WO2009154590A3
公开(公告)日：2010-04-15
申请号：PCT/US2008001804
申请日：2008-02-11
Applicant: LUCENT TECHNOLOGIES INC , LEONARD ERIC DAVID
Inventor： LEONARD ERIC DAVID
IPC: H04B17/00
CPC classification number: H04B17/336 , H04B17/21 , H04B17/26
Abstract: A method and system for optimally combining noisy measurements of attributes to obtain a composite statistically useful attribute result is disclosed. The method includes measuring a signal to noise ratio for each carrier in a pair, computing a signal to noise ratio power which is derived from said signal to noise ratio of each carrier in the pair and adding said signal to noise ratio powers that have been received within a predetermined period of time until the sum of said signal to noise ratio powers reaches a first threshold. The method continues with computing a weight based on the percentage of each measurements signal to noise ratio power in relation to said sum of said signal to noise ratio powers and deriving a statistically useful attribute result based at least in part on said weight of the of each signal to noise ratio power.
Abstract translation: 公开了一种用于最佳地组合属性的噪声测量以获得综合统计有用的属性结果的方法和系统。 该方法包括测量一对中的每个载波的信噪比，计算从该对中的每个载波的所述信噪比导出的信噪比功率，并将所接收到的所述信噪比功率相加 在所述信噪比功率的和达到第一阈值之前的预定时间段内。 该方法继续计算基于每个测量信号与噪声比功率相对于所述信噪比功率的所述和的百分比的权重，并且至少部分地基于所述信噪比功率的每个的所述权重导出统计上有用的属性结果 信噪比功率。
-
-
-
-
-
-
Search Results
17
records
(took 0.022 seconds)
