Patent application number | Description | Published |
20080227441 | SYSTEMS AND METHODS FOR A UNIVERSAL BASE STATION - Systems and methods for a universal base station are provided. In one embodiment, a base station for processing a plurality of communications channels for up to a plurality of network operators comprises a transceiver module communicatively coupled to up to a plurality of network operators, the transceiver module configured to process a plurality of upstream communication channels and a plurality of downstream communication channels based on one or more wireless communication modulation protocols, each of the upstream and downstream communication channels associated with one of the network operators. The transceiver module is configured to output a combined downstream RF signal based on the downstream communication channels. The transceiver module is configured to output a plurality of upstream data packets based on the upstream communication channels, each upstream data packet of the plurality of upstream data packets associated with one of the up to a plurality of network operators. | 09-18-2008 |
20080254784 | DYNAMIC RECONFIGURATION OF RESOURCES THROUGH PAGE HEADERS - Methods and systems for reconfiguring communications systems are provided. In one embodiment, a radio head interface for a communications system comprises: a first interface for communicating with a signal processing module digitally performing waveform processing to modulate and demodulate radio signals; a second interface for communicating with a radio head for transmitting and receiving wireless radio signals; a first buffer coupled to the first interface for receiving a page of data from the signal processing module, the page of data comprising a page header for communicating reconfiguration parameters and a plurality of digital radio frequency samples representing a modulated radio signal; at least one digital frequency converter coupled to the second interface; and a configuration management unit, the configuration management unit adapted to receive the reconfiguration parameters from the page header and reconfigure the at least one digital frequency converter based on the reconfiguration parameters. | 10-16-2008 |
20090054105 | METHOD AND SYSTEM FOR REDUCING UPLINK NOISE IN WIRELESS COMMUNICATION SYSTEMS - A method and system for reducing the overall noise floor in a wireless communication system, subsystem or network are disclosed, which reduces the output gain levels of specific uplink antenna transmitters during non-signal time periods (e.g., rest mode) when no communication signals are being conveyed between the mobile unit(s) and base station involved. The output gain level of each such uplink antenna's transmitter is decreased by a predetermined amount, which reduces the noise contribution of that uplink antenna, but also maintains the gain at a high enough level so that a signal can still pass from a mobile unit to the base station via that link, for example, during a call initiation attempt. | 02-26-2009 |
20090075644 | SYSTEM AND METHOD FOR SELECTIVELY REJECTING FREQUENCY BANDS IN WIRELESS COMMUNICATION SYSTEMS - A system and method for selectively rejecting frequency bands in wireless communication systems are disclosed. For example, the system provides a software-selective band rejection technique using multiple cascaded band rejection filters that can remove undesired sub-bands within the RF pass band of the wireless communication system, subsystem or network involved. Thus, the system enables the remaining or desired sub-bands in that RF pass band to be passed. Consequently, the software-oriented band rejection approach enables a designer, operator or user to rapidly configure or reconfigure its designated bands or sub-bands (e.g., on an application-by-application basis) without having to procure and install new bandpass filter hardware or other filter hardware. | 03-19-2009 |
20100135674 | COMPLEX OPTICAL MODULATION FOR REAL TIME COMMUNICATION - Systems and methods for complex optical modulation for real time communication are provided. In one embodiment, a method for real time optical transmission of communications data comprises: generating first in phase (I) and quadrature phase (Q) components of from a first serial bit stream of digitized radio frequency (RF) samples, wherein the digitized RF samples carry a payload of samples of an RF carrier signal which has been modulated with baseband data; modulating an optical signal based on the in phase (I) and quadrature phase (Q) components to produce a complex modulated optical signal; transmitting the complex modulated optical signal over a fiber optic connection; demodulating in real time, second in phase (I) and quadrature phase (Q) components from the complex modulated optical signal; and generating a second serial bit stream of digitized RF samples from the second in phase (I) and quadrature phase (Q) components. | 06-03-2010 |