Abstract:
Systems and methodologies are described that facilitate dynamically allocating demodulation resources of a wideband receiver to provide improved demodulation of simultaneously received signals. Signal-to-noise ratio (SNR) and/or packet error rate (PER) can be measured for the plurality of carriers to determine which demodulators related to the carriers require more resources than others to demodulate signals at a specified signal quality. Where the SNR of a related carrier is high and/or PER is low, the demodulator can require fewer resources than where the SNR of a related carrier is low and/or PER is high. In this regard, the resources are dynamically allocated among the demodulators and reallocated where SNR/PER changes and/or additional resources are made available.
Abstract:
Systems and methodologies are described that facilitate dynamically allocating demodulation resources of a wideband receiver to provide improved demodulation of simultaneously received signals. Signal-to-noise ratio (SNR) and/or packet error rate (PER) can be measured for the plurality of carriers to determine which demodulators related to the carriers require more resources than others to demodulate signals at a specified signal quality. Where the SNR of a related carrier is high and/or PER is low, the demodulator can require fewer resources than where the SNR of a related carrier is low and/or PER is high. In this regard, the resources are dynamically allocated among the demodulators and reallocated where SNR/PER changes and/or additional resources are made available.
Abstract:
Systems and methodologies are described that facilitate dynamically allocating demodulation resources of a wideband receiver to provide improved demodulation of simultaneously received signals. Signal-to-noise ratio (SNR) and/or packet error rate (PER) can be measured for the plurality of carriers to determine which demodulators related to the carriers require more resources than others to demodulate signals at a specified signal quality. Where the SNR of a related carrier is high and/or PER is low, the demodulator can require fewer resources than where the SNR of a related carrier is low and/or PER is high. In this regard, the resources are dynamically allocated among the demodulators and reallocated where SNR/PER changes and/or additional resources are made available.
Abstract:
The present invention discloses a GSM/CDMA dual-mode mobile phone and method of the same for inhibiting a GC mutual interference, wherein the mobile phone comprises a dual-port antenna connected respectively with a duplexer and a GSM RF circuit and configured to access the signals of the GSM and the CDMA; a RF switch provided in the CDMA RF receiving circuit, wherein the RF switch is controlled by a GSM baseband chip and configured to cut off a CDMA signal (i.e., cutting off a receiving path of the CDMA) transmitted/received by the dual-port antenna when a GSM operational frequency and a CDMA operational frequency belong to close frequency band during a transmitting timeslot of the GSM, to enhance the isolation between a GSM signal and a CDMA signal. The present invention inhibits interference of GSM transmission with the CDMA receiving in the circuit, achieves high isolation, and also simplifies design of the antennas, lowers requirements of the double antennas on the appearance and volume of the overall machine, and improves the flexibility in the design of the dual-mode mobile phone.
Abstract:
A baseband processing module includes an RX interface, a rake receiver combiner module, and may include additional components. The RX interface receives the baseband signals from an RF front end and creates baseband RX signal samples there from. The rake receiver combiner module includes control logic, an input buffer, a rake despreader module, and an output buffer. The rake despreader module is operable to despread the baseband RX signal samples in a time divided fashion to produce channel symbols including pilot channel symbols and physical channel symbols.
Abstract:
Systems and methodologies are described that facilitate dynamically allocating demodulation resources of a wideband receiver to provide improved demodulation of simultaneously received signals. Signal-to-noise ratio (SNR) and/or packet error rate (PER) can be measured for the plurality of carriers to determine which demodulators related to the carriers require more resources than others to demodulate signals at a specified signal quality. Where the SNR of a related carrier is high and/or PER is low, the demodulator can require fewer resources than where the SNR of a related carrier is low and/or PER is high. In this regard, the resources are dynamically allocated among the demodulators and reallocated where SNR/PER changes and/or additional resources are made available.
Abstract:
A configurable all-digital coherent demodulator system for spread spectrum digital communications is disclosed herein. The demodulator system includes an extended and long-code demodulator (ELCD) coupled to a traffic channel demodulator (TCD) and a parameter estimator (PE). The demodulator also includes a pilot assisted correction device (PACD) that is coupled to the PE and the TCD. The ELCD provides a code-demodulated signal to the TCD and the PE. In turn, the TCD provides a demodulated output data signal to the PE. The PACD corrects the phase error of the demodulated output data based on an error estimate that is fed forward from the PE. Accumulation operations in the ELCD, TCD, and PE are all programmable. Similarly, a phase delay in the PACD is also programmable to provide synchronization with the error estimate from the PE.
Abstract:
A method includes receiving data in a first data processing module, and enabling a second data processing module when at least one signal time slot of the received data comprises data that complies with a first data transmission standard. The method also includes exchanging signals between the first data processing module and software executing in a processor, and determining that a software configuration of the second data processing module has been completed. The method also includes processing the data in the second data processing module for the at least one signal time slot, and enabling a third data processing module upon a completion of processing at least one data block in the second data processing module, and determining that a software configuration of the third data processing module has been completed, the at least one data block comprising multiple signal time slots.
Abstract:
A wireless communications device may include a path searcher for detecting signal peak locations in a received signal. The path searcher may include a common coherent correlator for performing a common coherent correlation operation on the received signal, and a plurality of peak detection frequency bin correlators may be arranged in parallel downstream from the common coherent correlator. The wireless communications device may further include a RAKE finger stage for determining symbol values from the received signal based upon the detected signal peak locations.
Abstract:
A communications module, device and corresponding method for facilitating PN code searching. The module and device have a PN sequence generator configurable to generate a plurality of PN sequences. The module and device also include computational units configurable to correlate received signal samples of a plurality of received signal samples with a corresponding PN sequence of the plurality of PN sequences, and further configurable to provide other hardware resources. A number of computational units from the plurality of computational units are selectively configured to correlate the received signal samples with the PN sequences—the number depending upon availability of the plurality of computational units from providing the other hardware resources. According to a preferred embodiment, a plurality of configurable computational units are selectively configurable to implement the PN sequence generator.