Abstract: Methods for detecting regularly appearing pattern without excessive memory. The method comprises providing a matrix, and each row of the matrix comprises a location index and a count value. The count value is associated with the location index for indicating the number of the predetermined value that appears at certain locations. After a symbol is received, a current location index representing a current location is translated. A comparing row is picked from the matrix. The matrix is arranged in a circular manner such that the first row is a preliminary comparing row. The count value of the first row is incremented when the current location index equals the location index of the comparing row and the received symbol equals the predetermined value. The received symbol is determined as a regularly appearing pattern according to the count values in the matrix.

Abstract: Methods for detecting regularly appearing pattern without excessive memory. The method comprises providing a matrix, and each row of the matrix comprises a location index and a count value. The count value is associated with the location index for indicating the number of the predetermined value that appears at certain locations. After a symbol is received, a current location index representing a current location is translated. A comparing row is picked from the matrix. The matrix is arranged in a circular manner such that the first row is a preliminary comparing row. The count value of the first row is incremented when the current location index equals the location index of the comparing row and the received symbol equals the predetermined value. The received symbol is determined as a regularly appearing pattern according to the count values in the matrix.

Abstract: Methods and apparatuses for a closed-loop power control in a code-division multiple-access communication system wherein both received signal quality and communication channel quality are used to determine appropriate transmitter power, and transmission may be suspended when a channel quality metric, such as by short-term fading, degrades below a preset minimum threshold, or when a commanded transmitter power exceeds a preset maximum threshold, and wherein the transmitter power is controlled to mitigate fading effects so that received signal quality metric, such as by the average received signal power or by the average received SIR over a control cycle, approaches a preset desired level, and by momentarily suspending a remote terminal, overall system capacity and throughput may be enhanced.

Abstract: An apparatus and method is provided for controlling transmission power levels of respective mobile stations in a wireless cellular system, wherein the signal is transmitted from a transmitter at a controlled power level so that either the average received power level or the average signal to interference ratio (SIR) at receiver is close to a desired level so that the desired signal quality is achieved. According to a first embodiment, the desired level for the average received signal power is calculated based on the ensemble average intercell interference power level and the desired SIR levels. According to a second embodiment, the received average SIR level is estimated based on the average desired signal power and the ensemble average interference power. The average received power level (average SIR value) is compared to the desired level to generate a power control command. The power control command is fed back to the mobile station to instruct the adjustment of transmission power of the mobile station.

Abstract: An apparatus and method is provided for controlling transmission power levels of respective mobile stations in a wireless cellular system, wherein the signal is transmitted from a transmitter at a controlled power level so that either the average received power level or the average signal to interference ratio (SIR) at receiver is close to a desired level so that the desired signal quality is achieved. According to a first embodiment, the desired level for the average received signal power is calculated based on the ensemble average intercell interference power level and the desired SIR levels. According to a second embodiment, the received average SIR level is estimated based on the average desired signal power and the ensemble average interference power. The average received power level (average SIR value) is compared to the desired level to generate a power control command. The power control command is fed back to the mobile station to instruct the adjustment of transmission power of the mobile station.

Abstract: Methods and apparatuses for a closed-loop power control in a code-division multiple-access communication system wherein both received signal quality and communication channel quality are used to determine appropriate transmitter power, and transmission may be suspended when a channel quality metric, such as by short-term fading, degrades below a preset minimum threshold, or when a commanded transmitter power exceeds a preset maximum threshold, and wherein the transmitter power is controlled to mitigate fading effects so that received signal quality metric, such as by the average received signal power or by the average received SIR over a control cycle, approaches a preset desired level, and by momentarily suspending a remote terminal, overall system capacity and throughput may be enhanced.