Patent application number | Description | Published |
20120238272 | MOBILE TELECOMMUNICATION SYSTEM WITH ADAPTIVE HANDOFF MECHANISM AND METHOD OF OPERATION THEREOF - A method of operation of a mobile telecommunication system includes: measuring a measured target power and a measured server power; predicting a future target power and a future server power for a prediction tap number from when the measured target power and the measured server power are measured; computing an estimation error and a prediction error associated with the future target power and the future server power; determining a handoff hysteresis level based on the estimation error and the prediction error; and sending a handoff trigger for transferring a mobile station from a server station to a target station when the future target power minus both the future server power and the handoff hysteresis level is greater than zero. | 09-20-2012 |
20130065581 | MOBILE TELECOMMUNICATION SYSTEM WITH NOISE RATIO ESTIMATION MECHANISM AND METHOD OF OPERATION THEREOF - A method of operation of a mobile telecommunication system includes: measuring a received reference power; removing a guard portion from the received reference power; determining a noise variance estimate from both a noise region of the received reference power and a noise sample in a signal region of the received reference power, or calculating a dispersion power of a noise region of the received reference power and determining the noise variance estimate based on at least a dispersion power; and calculating a signal to noise ratio from the noise variance estimate for adjusting a receiver device. | 03-14-2013 |
20130150053 | COMMUNICATION SYSTEM WITH ADAPTIVE HANDOVER CONTROLLER AND METHOD OF OPERATION THEREOF - A method of operation of a communication system includes: estimating a channel; calculating a predicted signal within the channel; evaluating a prediction accuracy of the predicted signal; and adjusting a handoff parameter when the prediction accuracy of the predicted signal is within a threshold range for communicating through a mobile station. | 06-13-2013 |
20140094164 | ITERATIVE COORDINATED BEAMFORMING SYSTEMS AND METHODS - Methods in a multiple-cell cellular network that implements iterative coordinated beamforming (I-CBF) algorithms with limited cooperation from adjacent nodes (base stations and/or mobile stations) may jointly determine transmit beamforming vectors and receive combining vectors to increase sum throughput. The transmit beamforming vectors and receive combining vectors can be determined based on a performance metric, such as by maximizing SINR (signal-to-interference-and-noise ratio) for each mobile station in the network, maximizing SLNR (signal-to-leakage-and-noise ratio) for each base station in the network, or minimizing SMSE (sum mean square error). The algorithms may be performed to update vectors synchronously. In other cases, the algorithms may be performed to update vectors asynchronously. | 04-03-2014 |
20150043437 | AVOIDING SUSPENDED TRANSMISSION DURING NETWORK LISTEN FOR SMALL CELL BASE STATIONS - Techniques for compensating for self-induced interference in a small cell base station are provided. The techniques include detecting control signals from a neighboring base station associated with a wireless communication network, the control signals being transmitted by the neighboring base station at predetermined intervals, and compensating for self-induced interference caused by a transmitter of the small cell base station transmitting during the predetermined intervals in which control signals are received from the neighboring base station and the transmitter of the small cell base station is transmitting data. | 02-12-2015 |
20150065064 | ACTIVE INTERFERENCE CANCELLATION IN ANALOG DOMAIN - A method of performing interference cancellation (IC) in a communication device having a plurality of transmitters and a plurality of receivers includes detecting a co-existence issue between a first transmitter and a first receiver; selecting the first transmitter for providing an input signal to IC circuit; selecting the first receiver, wherein each of the receivers has a corresponding filter, the first receiver having a filter for filtering a signal received by the first receiver to provide a first filtered signal; configuring the IC circuit based on parameters of the co-existence issue; generating an output signal based on the input signal and the parameters; selecting a filter, based on the filter of the first receiver, the selected filter configured to filter the output signal to provide a second filtered signal; and generating a cancellation signal based on the first and second filtered signals. | 03-05-2015 |
20150111610 | APPARATUS AND METHODS OF BLUETOOTH AND WIRELESS LOCAL AREA NETWORK COEXISTENCE - Aspects of the present disclosure are directed to apparatuses and methods that can improve Bluetooth (BT) and Wireless Local Area Network (WLAN) coexistence at a BT/WLAN co-located wireless communication device. Various coexistence schemes are provided such as dynamic WLAN fragmentation based on high priority BT traffic by utilizing various techniques and signaling schemes. In some aspects of the disclosure, narrow-band active interference cancellation may be combined with dynamic WLAN fragmentation to further improve BT/WLAN coexistence performance. | 04-23-2015 |
20150200721 | OPPORTUNISTIC ACTIVE INTERFERENCE CANCELLATION USING RX DIVERSITY ANTENNA - A method of performing interference cancellation (IC) in a wireless communication device having a receiver comprising at least a primary receiver chain and a diversity receiver chain includes determining an interference level of a transmitted signal on the receiver; determining whether the interference level is within a predetermined range; selecting a first mode of operation if the interference level is within a predetermined range; and selecting a second mode of operation if the interference level is not within the predetermined range. The first mode includes receiving, at the primary receiver chain, a first signal corresponding to the transmitted signal; receiving, at the diversity receiver chain, a second signal corresponding to the transmitted signal for providing to an IC circuit; generating, at the IC circuit, an output signal based on the second signal; and generating a cancellation signal based on the output signal and the first signal. | 07-16-2015 |