Abstract:
Battery life estimation can be performed by using an algorithm and parameter values for the algorithm, scaled according to the type, e.g. capacity and chemistry, of the battery actually being used. The result of the algorithm may be scaled according to the expected current demand of the apparatus being powered by the battery. A parameter of the algorithm may also be varied if it fails to meet a predetermined fitness criterion during discharging of the battery.
Abstract:
There is provided a method, including receiving data in a first user terminal during a time slot assigned for simultaneous transmission of data to a first set of at least one user terminal and to a second set of at least one user terminal in the time-division multiplexing communication protocol, estimating the applied power ratio between the transmission power of a first sub-channel to the first set and the transmission power of a second sub-channel to the second set, wherein the available power ratios are divided into at least one known region and each applied power ratio belongs to one region, estimating a bit error probability for each of the bursts of the received data; and applying an adaptation process in order to make the estimated bit error probabilities to fall into one of bit error probability intervals of a predefined mapping table with a predetermined probability, wherein the bit error probability interval in which the estimated bit error probabilities fall determines the bit error probability that is to be reported to a network and the adaptation process to be applied depends on which region the applied power ratio belongs to.
Abstract:
Embodiments of the invention include apparatuses, systems, computer readable media, and methods for processing speech signals in a manner that enhances capacity, efficiency and hardware utilization of a communications network. A method, according to one embodiment, includes receiving speech signals, determining a subchannel power imbalance ratio of at least two subchannels, and selecting a receiver architecture for processing the speech signals in accordance with the determined subchannel power imbalance ratio.
Abstract:
A first user terminal receives data during a time slot assigned for simultaneous transmission of data to a first set of at least one user terminal and to a second set of at least one user terminal using time-division multiplexing, estimates the applied power ratio between a first sub-channel to the first set and a second sub-channel to the second set (the available power ratios are divided into at least one known region and each applied power ratio belongs to one region), estimates bit error probability for each of the bursts of the received data; and applies an adaptation process in order to make the estimated bit error probabilities fall into one of bit error probability intervals of a predefined mapping table with a predetermined probability. which determines the bit error probability that is to be reported to a network.
Abstract:
Embodiments of the invention include apparatuses, systems, computer readable media, and methods for processing speech signals in a manner that enhances capacity, efficiency and hardware utilization of a communications network. A method, according to one embodiment, includes receiving speech signals, determining a subchannel power imbalance ratio of at least two subchannels, and selecting a receiver architecture for processing the speech signals in accordance with the determined subchannel power imbalance ratio.
Abstract:
There are provided measures for cell search and synchronization. Such measures may exemplarily comprise acquiring an observation signal for a carrier signal on a carrier which is under consideration for synchronization with a desired cellular system, calculating a power measure of the observation signal, which indicates a received power of said carrier signal, calculating a non-circularity measure of the observation signal, which indicates a non-circularity of said carrier signal, and calculating a ranking measure, which indicates an applicability of said carrier for synchronization with the desired cellular system, based on the calculated power measure and the calculated non-circularity measure.
Abstract:
There is provided a receiver comprising a processing unit, a communications unit for receiving frames including training sequence symbols or pilot symbols, the processing unit being configured to use Cyclic Redundancy Check for detecting errors in the received frames. When no errors in a given frame are discovered on the basis of the Cyclic Redundancy Check, the processing unit is further configured to define a TSC, training sequence code, bit error rate for the bursts of the given frame on the basis of the training sequence symbols or the pilot symbols; to define an upper limit for the TSC bit error rate; and to determine the given frame to be bad when the TSC bit error rate for the bursts of the given frame is greater than the upper limit of the TSC bit error rate.
Abstract:
The Doppler spreads of the received signals in a MIMO, SIMO or MISO mobile communication system are estimated from the derivatives of the path transfer function envelopes for the received signals. The estimated Doppler spreads is used to estimate the speed of the mobile station.
Abstract:
The Doppler spreads of the received signals in a MIMO, SIMO or MISO mobile communication system are estimated from the derivatives of the path transfer function envelopes for the received signals. The estimated Doppler spreads is used to estimate the speed of the mobile station.
Abstract:
There is provided a receiver comprising a processing unit, a communications unit for receiving frames including training sequence symbols or pilot symbols, the processing unit being configured to use Cyclic Redundancy Check for detecting errors in the received frames. When no errors in a given frame are discovered on the basis of the Cyclic Redundancy Check, the processing unit is further configured to define a TSC, training sequence code, bit error rate for the bursts of the given frame on the basis of the training sequence symbols or the pilot symbols; to define an upper limit for the TSC bit error rate; and to determine the given frame to be bad when the TSC bit error rate for the bursts of the given frame is greater than the upper limit of the TSC bit error rate.