Patent application number | Description | Published |
20090316842 | PHASE-NOISE RESILIENT GENERATION OF A CHANNEL QUALITY INDICATOR - System(s) and method(s) are provided for generating phase-noise resilient channel quality indicator(s). A pilot signal utilized to determine a channel quality indicator is rotated to be aligned to a phase reference signal. Separate noise evaluations in quadrature and in-phase directions are utilized, at least in part, to generate a net noise estimate that is phase-noise compensated or resilient. For example, various combination schemes of quadrature and in-phase noise evaluations can be exploited to generate a net noise estimate, the schemes include weighted average of in-phase and quadrature noise estimates and running averages thereof. Simulation of net noise estimates as a function of geometry conditions reveal that the combination schemes provide substantive mitigation of phase-noise, thus making CQI generation phase-noise resilient. | 12-24-2009 |
20130324179 | METHODS AND APPARATUS FOR SIRE-BASED ULTPC REJECTION - Disclosed are methods and apparatus for rejecting unreliable downlink (DL) transmit power control (TPC) commands based on signal-to-interference-ratio estimates (SIRE). The method includes receiving by a user equipment (UE) a DL transmit power control (TPC) command from a base station; calculating a signal-to-interference ratio estimate (SIRE) for the DL channel; determining a scaling factor for a DLTPC rejection threshold based on the DL channel SIRE; adjusting the DLTPC rejection threshold based on the determined scaling factor; and rejecting or accepting the DLTPC command based on the adjusted DLTPC rejection threshold. | 12-05-2013 |
20130324180 | METHODS AND APPARATUS FOR DLTPC REJECTION IN DOWNLINK WINDUP MODE - Disclosed are methods and apparatus for rejecting unreliable downlink (DL) transmit power control (TPC) commands in windup mode. In one aspect, the method includes receiving by a user equipment (UE) a plurality of DLTPC commands from a base station, analyzing on one or more transmitted uplink (UL) TPC commands, detecting a windup mode based on the one or more DLTPC and ULTPC commands, and rejecting one or more DLTPC down commands in the windup mode. | 12-05-2013 |
20140078917 | APPARATUS AND METHOD FOR ASSESSING DECODE RELIABILITY OF RADIO TRANSMISSIONS - Disclosed are an apparatus and method for assessing decode reliability of voice, data and control channel transmissions. In an aspect, the apparatus and method are configured to receive one or more radio frames or parts of a frame on a downlink channel; demodulate the received one or more frames or parts of the frame; decode the demodulated one or more frames or parts of the frame; compute one or more demodulator-based metrics and one or more decoder-based metrics; combine the one or more demodulator-based metrics and the one or more decoder-based metrics using a reliability function that assesses reliability of the decoded one or more frames or parts of the frame; and accept or reject the decoded one or more frames or parts of the frame based on the assessment of the reliability of the decoded frames or parts of the frame. | 03-20-2014 |
20140080537 | APPARATUS AND METHOD FOR BIASING POWER CONTROL TOWARDS EARLY DECODE SUCCESS - Disclosed are an apparatus and method for power control biasing towards early decode success of voice calls. In an aspect, the apparatus and method are configured to measure a signal-to-noise ratio (SNR) of a downlink transmission; request a base station to increase transmit power at the start of a transmission time interval (TTI) for a downlink voice call transmission; demodulate one or more voice frames of the voice call transmission; performing early decoding of one or more demodulated voice frames; determine whether the early decoding was successful; when the early decoding was successful, terminate demodulation and decoding of the voice call transmissions and request the base station to decrease transmit power; and when the early decoding was unsuccessful, request the base station to decrease transmit power for the remainder of the voice call transmission. | 03-20-2014 |
20140126443 | VOICE STATE ASSISTED FRAME EARLY TERMINATION - The present disclosure presents a method and apparatus for reducing power consumption during a voice communication in a user equipment (UE). For example, the method may include receiving a plurality of frames associated with the voice communication. Further, such an example method may include determining whether a frame pattern based at least on the received plurality of frames corresponds to a transition from a speech burst period to a non-speech period, and disabling a portion of a receiver subsystem at the UE for at least a portion of a frame associated with the non-speech period. As such, the power consumption in a UE may be reduced. | 05-08-2014 |
20140126445 | APPARATUS AND METHOD FOR DCCH-ALIGNED RECEIVE DIVERSITY - One or more aspects of the present disclosure aim to enable a reduced call drop rate and/or improved call performance in calls using 3GPP Release 99 Dedicated Physical Channel (DPCH) signaling, while reducing, or at least not causing a substantially large rise in power consumption at a wireless device, by utilizing selection diversity at a receiver. According to an aspect of the disclosure, a UE invokes a measurement period for detecting a downlink dedicated control channel (DCCH) based on a condition of a radio channel, during an initial portion of a transmission time interval (TTI). The UE samples one or more characteristics of a radio channel utilizing one or more of a plurality of receive chains. If the DCCH is detected during the measurement period, the UE selects one or more receive chains from among the plurality of receive chains in accordance with the one or more sampled characteristics. The UE receives a downlink transmission utilizing the selected one or more receive chains. | 05-08-2014 |
20140169273 | APPARATUS AND METHOD FOR EARLY DECODING OF TFCI IN UMTS - Disclosed are systems, methods, and computer program products for decoding of transport format combination indicator (TFCI) in a universal mobile telecommunications system (UMTS). In one aspect, a method includes receiving by a UE coded TFCI bit sequence on a physical channel, determining a range of TFCI bits that contain information, performing early decoding of the received TFCI bit sequence; and limiting the search set of decoded TFCI bits to the determined range of TFCI bits. The range of TFCI bits that contain information may be determined from a code book. | 06-19-2014 |
20140307563 | APPARATUS AND METHODS OF PROCESSING A PROTOCOL DATA UNIT - Methods and apparatus for processing data received at a user equipment comprises determining a protocol data unit (PDU)-specific Layer 1 decoding metric of a Layer 1 decoded PDU. The methods and apparatus further comprises determining whether to perform a Layer 2 decoding of the Layer 1 decoded PDU based on the PDU-specific Layer 1 decoding metric. | 10-16-2014 |
Patent application number | Description | Published |
20120226950 | DATA CLASSIFICATION BASED ON CYCLIC REDUNDANCY CHECK AND DECODER METRIC - A method of data classification for use in a wireless communication system includes obtaining decoder metrics from a decoder. The decoder metrics correspond to data generated by the decoder. The decoder metrics include a symbol error rate (SER) and an energy metric (EM). The method also includes classifying the data into a first category if the data fails a cyclic redundancy check (CRC) check, into a second category if the data passes the CRC check and is determined to be unreliable, or into a third category if the data passes the CRC check and is determined to be reliable. A reliability of the data is determined based on the decoder metrics and an EM threshold. | 09-06-2012 |
20120324317 | DATA CLASSIFICATION IN A WIRELESS COMMUNICATION SYSTEM - A method of data classification for use in a wireless communication system includes obtaining decoder metrics from a decoder. The decoder metrics correspond to data generated by the decoder. The decoder metrics include a first metric and a second metric. The method also includes classifying the data into a first category if the data fails an error detection check, into a second category if the data passes the error detection check and is determined to be unreliable, or into a third category if the data passes the error detection check and is determined to be reliable. A reliability of the data is determined based on at least one of the decoder metrics and a threshold. | 12-20-2012 |
20130208609 | REDUCING NETWORK ACQUISITION TIME - A method, an apparatus, and a computer program product for wireless communication are provided in which PAPR for an input of an AGC in a wireless receiver is generated. The AGC may provide a gain-controlled signal to a correlator when the PAPR of the input does not exceed the threshold ratio and may clamp the gain of the gain-controlled signal when PAPR of the input is large. A large PAPR may cause termination of search for a signal of interest in a current channel. The search may be resumed in a non-adjacent channel. | 08-15-2013 |
20140078909 | APPARATUS AND METHOD FOR DETECTION OF A DEDICATED CONTROL CHANNEL (DCCH) - Apparatus and methods for wireless communication that includes measuring energy on a first path metric and second path metric, comparing the energy on the first path metric and second path metric to a predetermined threshold and determining if Dedicated Control Channel (DCCH) energy is present. | 03-20-2014 |
20140078946 | APPARATUS AND METHOD FOR REDUCING UE'S POWER CONSUMPTION BY CONTROLLING EARLY DECODING BOUNDARY - Disclosed are methods and apparatus for reducing UE's power consumption by controlling early decoding boundary. In one aspect, a UE is configured to receive a data or voice frame from a base station. The UE selects one or more quality metrics for determining decoding boundary of the received frame and computes the selected one or more quality metrics. The UE then determines a decoding boundary for the frame based on one or more computed quality metrics. The UE then decodes the received frames at the determined decoding boundary and determines whether the decoding of the frame was successful. If the early decoding of the frame was successful, the UE may terminate reception of the frame. If the early decoding of the frame was unsuccessful, the UE may adjust the decoding boundary and decodes the frame at the adjusted boundary. | 03-20-2014 |
20140378069 | DEVICES AND METHODS FOR FACILITATING SIGNAL-TO-INTERFERENCE RATIO ESTIMATES FOR CLOSED-LOOP TRANSMISSION DIVERSITY COMMUNICATIONS - UEs are adapted to facilitate calculation of signal-to-interference ratio (SIR) estimates in closed-loop transmission diversity (CLTD) communications before downlink and uplink synchronization is achieved. A UE may receive a transmission sent using transmission diversity. According to one example, the UE may calculate a plurality of signal-to-interference ratio (SIR) estimates for the received transmission, where each signal-to-interference ratio estimate is calculated using a different weight factor. The UE may further select one of the calculated signal-to-interference ratio (SIR) estimates to be employed for the received transmission. According to another example, the UE may calculate a signal-to-interference ratio (SIR) estimate for the received transmission without employing any weight factor. Other aspects, embodiments, and features are also included. | 12-25-2014 |
20140378070 | DEVICES AND METHODS FOR DETECTING AND HANDLING DECONSTRUCTIVE IMPACTS OF DEFAULT WEIGHT FACTORS FOR CLOSED-LOOP TRANSMISSION DIVERSITY COMMUNICATIONS - UEs are adapted to facilitate detection and handling of deconstructive impacts of default weight factors employed before downlink and uplink synchronization is achieved in closed-loop transmission diversity communications. According to one example, a UE may receive transmissions sent using a default weight factor for transmission diversity. The UE may determine whether the default weight factor is causing a deconstructive impact on signal-to-interference ratio estimates for the received transmissions. When it is determined that the default weight factor is causing the deconstructive impact on the signal-to-interference ratio estimates for the received transmissions, the UE may employ an alternate closed-loop transmission diversity (CLTD) mode. Other aspects, embodiments, and features are also included. | 12-25-2014 |