Patent application number | Description | Published |
20100111035 | LOCATION-BASED HANDOVERS FROM A MACROCELL TO A FEMTOCELL USING PERIODIC MEASUREMENT REPORTING - The present invention provides a method for implementation in user equipment that is configured to communicate with a wireless communication system that includes macro-cells femtocells. The method includes determining a distance between the user equipment and the femtocell(s). The method also includes periodically transmitting first measurement reports from the user equipment to the macrocell(s) at a selected time interval. The first measurement reports include information indicating the distance between the user equipment and the femtocell(s). The method also includes receiving a request to hand off from the macrocell(s) to the femtocell(s). The request is generated by a radio network controller based on the periodically transmitted measurement reports. | 05-06-2010 |
20100112999 | METHOD FOR ASSOCIATING A CLUSTER OF PREMIER FEMTOCELLS WITH USER EQUIPMENT - The present invention provides a method for implementation in user equipment that is configured to communicate with a wireless communication system that includes a macro-cell and a plurality of femtocells that are deployed in a cluster. The method includes providing a call connection request from the user equipment to one of a subset of the plurality of femtocells and receiving information identifying the subset of the femtocells as a femtocell cluster associated with the user equipment. The method also includes receiving information indicating locations of each of the femtocells in the femtocell cluster. The method further includes storing the information identifying the femtocells in the femtocell cluster and the information indicating the locations in the user equipment. | 05-06-2010 |
20100113035 | LOCATION-BASED HANDOVERS FROM A MACROCELL TO A FEMTOCELL USING EVENT-TRIGGERED MEASUREMENT REPORTING - The present invention provides a method for implementation in user equipment that is configured to communicate with a wireless communication system that comprises one or more macro-cells and one or more femtocells. The method includes comparing, at the user equipment, a location of the user equipment and a location of one or more femtocells. The method also includes transmitting, from the user equipment to the macrocell(s), a first measurement report, with a location-based event, when the comparison indicates that the user equipment is within a selected range of the femtocell(s). | 05-06-2010 |
20100113038 | METHOD FOR ASSOCIATING A PREMIER FEMTOCELL WITH USER EQUIPMENT - The present invention provides a method for implementation in user equipment that is configured to communicate with a wireless communication system that includes at least one macro-cell and a plurality of femtocells. The method includes providing a call connection request from the user equipment to one of the plurality of femtocells and receiving information indicating a location of the femtocell and information indicating the femto cell is a premier femtocell associated with the user equipment. The call connection request is received at the user equipment from the premier femtocell in response to providing the call connection request. The method further includes storing the information indicating the location of the premier femtocell in the user equipment. | 05-06-2010 |
20100124927 | PERIODIC REPORTING FOR INTER-RADIO ACCESS TECHNOLOGY LOCATION-BASED HANDOVERS FROM A GSM MACROCELL TO A WCDMA FEMTOCELL - The present invention provides a method for implementation in a mobile unit that is configured to communicate with a wireless communication system that includes macrocells and one or more femtocell(s). The macrocells and the femtocells use different radio access technologies. The method includes periodically reporting, from the mobile unit to the macrocell, a distance between said mobile unit and the femtocell and performing an inter-radio access technology handoff of the mobile unit from the macrocell to the femtocell when the distance is less than a threshold distance. | 05-20-2010 |
20100124931 | LOCATION-BASED, EVENT TRIGGERED INTER-RADIO ACCESS TECHNOLOGY HANDOVERS FROM A CDMA MACROCELL TO A WCDMA FEMTOCELL - The present invention provides a method for implementation in mobile unit that is configured to communicate with a wireless communication system that includes macrocells and femtocells. The macrocells and the femtocells use different generation radio access technologies. The method includes determining a distance between the mobile unit and the femtocell(s) and transmitting a first measurement report when the distance between the mobile unit and the femtocell(s) is less than a threshold distance. The method also includes performing an inter-radio access technology handoff from the base transceiver station to the femtocell when the distance is less than a threshold distance. | 05-20-2010 |
20150045045 | METHOD FOR ASSOCIATING A PREMIER FEMTOCELL WITH USER EQUIPMENT - The present invention provides a method for implementation in user equipment that is configured to communicate with a wireless communication system that includes at least one macro-cell and a plurality of femtocells. The method includes providing a call connection request from the user equipment to one of the plurality of femtocells and receiving information indicating a location of the femtocell and information indicating the femto cell is a premier femtocell associated with the user equipment. The call connection request is received at the user equipment from the premier femtocell in response to providing the call connection request. The method further includes storing the information indicating the location of the premier femtocell in the user equipment. | 02-12-2015 |
Patent application number | Description | Published |
20120191447 | METHOD AND APPARATUS FOR MASKING WIND NOISE - Wind and other noise is suppressed in a signal by adaptively changing characteristics of a filter. The filter characteristics are changed in response to the noise content of the signal over time using a history of noise content. Filter characteristics are changed according to a plurality of reference filters, the characteristics of which are chosen to optimally attenuate or amplify signals in a range of frequencies. | 07-26-2012 |
20120237018 | APPARATUS AND METHOD FOR CONVERGENCE CONTROL - Regardless of the presence of echo or uplink speech, a microphone signal is received at a small filter and this small filter is functionally and/or physically separate from an adaptive echo canceller filter. The signal is applied to the small filter and an error signal is determined from the signal utilizing the small filter. The small filter continuously adapts the received signals. A first adaptation factor is determined based at least upon the error signal and the microphone signal according to a first signal analysis approach and a second adaptation factor is determined based at least upon the microphone signal according to a second signal analysis approach. The first adaption factor is compared to the second adaptation factor and one of the first adaptation factor or the second adaptation factor is selected based upon at least one predetermined criteria. The selected adaptation factor is applied to the echo canceller filer to control the convergence of the echo canceller filter. | 09-20-2012 |
20120237048 | APPARATUS AND METHOD FOR ECHO SUPPRESSION - An input signal from the input source is received. An attenuation of an echo canceller filter is calculated using at least the input signal. A spectral component of a frequency band of an echo suppressor is adjusted to perform enhanced suppression using the calculated attenuation. A comfort noise factor is calculated using at least the input signal and the calculated attenuation. The comfort noise to the output of the echo suppressor is adjusted to obtain a modified input signal. | 09-20-2012 |
20120265526 | APPARATUS AND METHOD FOR VOICE ACTIVITY DETECTION - An input signal is received. A plurality of electrical characteristics from the input signal is obtained. A plurality of acoustic features is determined from the obtained electrical characteristics and each of the acoustic features being different from the others. At least some of the acoustic features are compared to a plurality of predetermined criteria. Based upon the comparing of the acoustic features to the plurality of predetermined criteria, it is determined when the signal is a voice signal or a noise signal. | 10-18-2012 |
20130024193 | APPARATUS AND METHOD FOR AUTOMATIC GAIN CONTROL - A speech signal is received at an input. At least one electrical value associated with the received speech signal is tracked. A dynamic adjustment of the speech signal is determined. The dynamic adjustment is selected at least in part so as to minimize a distortion and minimize an over-amplification of the speech signal based at least in part upon an analysis of the at least one electrical value. The dynamic adjustment is further selected to obtain a desired output signal characteristic for the speech signal presented at an output. The dynamic adjustment value is applied to the speech signal and the adjusted speech signal is presented at the output. The gain of the signal can also be limited to prevent over-amplification. | 01-24-2013 |