Abstract: Aspects of dynamic power mode switching per rail based on power profiling are described. In one embodiment, an amount of current supplied by at least one of a plurality of power rails is sensed with a current sense circuit. The amount of current is profiled over a period of time and a profile of power consumed is generated and maintained. With reference to the power profile, one or more power-related decisions may be made in a system. One or more power rails may be powered off or placed into low power mode based on various factors, such as the amount of current being consumed per rail, the temperature of certain system components, or an unexpected ongoing consumption of power in the system.

Abstract: Aspects of a clock domain crossing serial interface, direct latching over the serial interface, and response codes are described. In various embodiments, a data communication command received over a serial interface is identified, and an address received over the serial interface is resolved to access a register bank. In a write operation, depending upon whether the address falls within a direct latch address range of the register bank, data may be directly latched into a direct latch register of the register bank or into a first-in-first-out register. For both read and write operations, reference may be made to a status register of the serial interface to identify or mitigate error conditions, and wait times may be relied upon to account for a clock domain crossing. After each of the read and write operations, a response code including a status indictor may be communicated.

Abstract: Aspects of power and system management information visibility are described. In various embodiments, a system parameter of a system is measured. The system parameter may include one or more parameters such as system voltages, temperatures, options, or conditions of the system. The system parameter may be evaluated by a power manager processor. The evaluation may determine operating settings for one or more elements of the system. Based on the evaluation, one or more operating parameters for elements of the system may be set, in advance of powering up the system elements. After the operating parameters have been set, system elements may be released to start or boot based on the operating parameters. In this manner, one or more elements of the system may power on in a more flexible and deliberate manner, taking the current operating environment of the system into consideration.

Abstract: Aspects of charger detection and optimization prior to host control are described herein. In various embodiments, a condition of whether reverse current is present on a system bus is detected. When the condition for reverse current is present, reverse current is sunk by one or more of various reverse current sink circuits. By relying upon one or more of the reverse current sink circuits, for safety, to address or mitigate the condition for reverse current, a detector may be able to identify or distinguish among several different types of charger or charging ports coupled to a system bus allowing a charger to be selected optimally. Further, an indicator of the type of charger or charging port coupled to the system bus is communicated over a single pin interface, for backwards compatibility with circuits capable of identifying between only two different types of chargers.

Abstract: Aspects of enhanced recovery mechanisms are described. A predetermined operating parameter for a power rail is set at the outset of system start. Afterwards, a processor is released to start with a power management circuit. In turn, the power management circuit receives a default operating parameter for the power rail from the processor, and stores the default operating parameter. The power management circuit also receives a runtime operating parameter for the power rail from the processor and modifies the operating parameter for the power rail according to the runtime operating parameter. If an error condition in the processor is encountered, the power management circuit may modify the operating parameter for the power rail according to the default operating parameter in response to a reset control signal from the processor. Use of the default operating parameter for the power rail may assist the processor to recover from the error condition.

Abstract: One embodiment includes determining a channel quality prediction error indicative a channel quality for a first time interval. The first time interval includes of a plurality of subframes, and the channel quality prediction error is calculated based on a first channel quality indicator associated with a first sub-frame and a second channel quality indicator associated with a second sub-frame. The first subframe and the second sub-frame are temporally spaced from one another. For example, the first subframe and the second subframe are temporally spaced apart by at least the length of the first time interval. More specifically, the second subframe may be received the first time interval after the first subframe.

Abstract: A method is provided for controlling communications between a base station and a mobile device. The method comprises determining the actual transmission gap and only discarding slots and/or frames that overlap with the actual transmission gap. Slots and/or frames that overlap with a scheduled transmission gap but are outside the actual transmission gap are transmitted.

Abstract: One embodiment includes determining a channel quality prediction error indicative a channel quality for a first time interval. The first time interval includes of a plurality of subframes, and the channel quality prediction error is calculated based on a first channel quality indicator associated with a first sub-frame and a second channel quality indicator associated with a second sub-frame. The first subframe and the second sub-frame are temporally spaced from one another. For example, the first subframe and the second subframe are temporally spaced apart by at least the length of the first time interval. More specifically, the second subframe may be received the first time interval after the first subframe.

Abstract: In a method for determining a transmitted data rate, a received data frame may be decoded using different candidate rates to generate a first decoded bit sequence associated with each candidate rate. A first frame quality indicator and a first error metric may be generated for each of the candidate rates based on the associated first decoded bit sequence and a decoding metric for the associated first decoded bit sequence. One of the candidate rates may be selected as the transmitted data rate based on the first frame quality indicators, the first error metrics and an error metric threshold.

Abstract: A method of adjusting a power level of communications over a channel in a wireless communications network. In the method, a determination (e.g., by a radio network controller (RNC)) is made regarding a number of base stations actively communicating with a mobile station. For example, the determination may indicate whether the mobile station is engaged in soft handoff or simplex mode. One of a plurality of power control algorithms (e.g., a fixed offset power control algorithm, a channel quality indicator (CQI) power control algorithm, etc.) is selected based on the determination. A power level of communications over the channel (e.g., a downlink communications channel to the mobile station) is then adjusted in accordance with the selected power control algorithm.

Abstract: A receiver and method thereof for determining if a sent packet was properly received. The method includes buffering more than one response message received in response to the sent packet and using the buffered response messages to determine if the packet was properly received.

Abstract: A plurality of decoding metrics for a current frame may be generated based on a correlation set for a current frame and a correlation set for at least one previous frame. Whether a signal is present on a control channel may then be determined based on the generated decoding metrics.

Abstract: A method is provided for controlling communications between a base station and a mobile device. The method comprises determining the actual transmission gap and only discarding slots and/or frames that overlap with the actual transmission gap. Slots and/or frames that overlap with a scheduled transmission gap but are outside the actual transmission gap are transmitted.

Abstract: A method is provided for adjusting timing of transmissions within a wireless communications system. The method comprises receiving a request for a timing adjustment and adjusting timing of a DPCH in a first frame. The timing of at least one of an E-RGCH and an E-HICH is then adjusted in a second frame associated with the first frame.

Abstract: A method is provided for controlling communications between a base station and a mobile device when transmission gaps occur. The method comprises skipping a transmission that overlaps with the transmission gap. An alternative method comprises postponing the transmission to the next available transmission time.

Abstract: In a method of detecting a signal, a control channel associated with a physical channel may be decoded to produce at least one decoding metric. A control channel signal on the control channel may then be detected based on the decoding metric.

Abstract: In the method, a current channel condition is estimated based at least in part on a previous channel quality indicator and power control information received after the previous channel quality indicator.

Abstract: In a method of controlling transmit power for a user call migrating between a first entity and a second entity in a base station of a wireless communication system, power control may be performed, as a call of the user is migrated from the first to the second entity, or vice versa, based on an adjustment ratio value. Parameters for balancing transmit power as the user call is migrated from the first entity to the second entity may be selected so that any difference in transmit power does not adversely affect system performance.

Abstract: In a method of detecting a mobile station that is not following a power control command, for each time slot, a received signal-to-interference ratio (SIR) value of the mobile as measured by a given base station is compared with a given average SIR target value. An error metric may be generated for each slot based on a difference between the measured SIR and average SIR target values. The generated error metrics may be averaged over a given time duration to determine at least one (or more) average error value(s), and the mobile station is determined as violating a power control command if the at least one or more average error value(s) exceed a given threshold.

Abstract: A wireless communication network (20) utilizes a down bias to minimize or eliminate random walk when controlling a transmit power between a base station (38) and a mobile station (40). In a disclosed example, a link quality monitoring module (54) determines the quality of a link between the mobile station (40) and the base station (38). A power control module (52) applies a down bias, which is dependent on the determined link quality, to a transmit power correction for minimizing random walk. In a disclosed example, the down bias varies linearly and inversely proportionally to the quality of the link between the mobile station and the base station.