Abstract: This disclosure is directed to methods and system for intelligent roaming of user equipment (“UE”) of a home network onto a visited network. The methods and systems monitor performance of voice and data services for UEs in coverage areas of edge cell sites of the home network. The methods and systems determine which UEs in the coverage areas of the edge cell sites to roam on the visited network based on decreases in voice and data services. The UEs in the coverage areas selected for roaming are pushed to roam on the visited network by sending a signal that instructs selected UEs to switch into roaming mode while the UEs are still in the coverage areas of the edge cell sites.

Abstract: This disclosure is directed to methods and system for intelligent roaming of user equipment (“UE”) of a home network onto a visited network. The methods and systems monitor performance of voice and data services for UEs in coverage areas of edge cell sites of the home network. The methods and systems determine which UEs in the coverage areas of the edge cell sites to roam on the visited network based on decreases in voice and data services. The UEs in the coverage areas selected for roaming are pushed to roam on the visited network by sending a signal that instructs selected UEs to switch into roaming mode while the UEs are still in the coverage areas of the edge cell sites.

Abstract: A method of operating a first network element in a wireless communications network to perform WIFI and long term evolution (LTE) communications with a second network element on an unlicensed portion of a radio spectrum, the unlicensed portion being divided into first and second frequency regions, includes performing, at the first network element, WIFI protocol communications over the unlicensed portion, including at least one of transmission to, and reception from, a second network element, of WIFI protocol data using one or more first frequencies of the first frequency region, and performing, at the first network element, LTE protocol communications over the unlicensed portion including at least one of transmission to, and reception from, the second network element, of LTE protocol data using one or more second frequencies of the second frequency region, the WIFI protocol communications and LTE protocol communications being performed by the first network element simultaneously.

Abstract: A method of operating a first network element in a wireless communications network to perform WIFI and long term evolution (LTE) communications with a second network element on an unlicensed portion of a radio spectrum, the unlicensed portion being divided into first and second frequency regions, includes performing, at the first network element, WIFI protocol communications over the unlicensed portion, including at least one of transmission to, and reception from, a second network element, of WIFI protocol data using one or more first frequencies of the first frequency region, and performing, at the first network element, LTE protocol communications over the unlicensed portion including at least one of transmission to, and reception from, the second network element, of LTE protocol data using one or more second frequencies of the second frequency region, the WIFI protocol communications and LTE protocol communications being performed by the first network element simultaneously.

Abstract: Embodiments of the claimed subject matter provide a method and apparatus for transforming signals for wireless communication. One embodiment of the apparatus includes a transformer comprising a plurality of first ports and second ports. Each first port is associated with a mode of a first antenna array configuration and each second port is configurable to be communicatively coupled to one of the antennas deployed in the first antenna array configuration. This embodiment also includes a selector configurable to select a subset of the modes of the first antenna array configuration based on a degree of variation with azimuth. This embodiment further includes a mapper configured to map each of a plurality of third ports to one of the first ports associated with one of the subset of modes. Each of the third ports is associated with a mode of a second antenna array configuration.

Abstract: Example embodiments include methods of interference cancellation at NodeB receivers of baseband antenna signals including physical channels. The methods include canceling interference from a received baseband antenna signal by removing a reconstructed baseband signal from the processed received baseband antenna signal. The processed reconstructed baseband signal includes users whose physical data channel signals were successfully decoded. Methods also include removing interference from a received baseband signal to form an interference cancelled baseband signal that will be processed by the receiver. The interference cancelled baseband signal is the received baseband antenna signal minus users' signal interference contributions whose demodulated physical data channel signals have a determined user symbol energy value that exceeds a threshold. Methods further include removing interference from a user's signal to be error corrected.

Abstract: Example embodiments include methods of interference cancellation at NodeB receivers of baseband antenna signals including physical channels. The methods include canceling interference from a received baseband antenna signal by removing a reconstructed baseband signal from the processed received baseband antenna signal. The processed reconstructed baseband signal includes users whose physical data channel signals were successfully decoded. Methods also include removing interference from a received baseband signal to form an interference cancelled baseband signal that will be processed by the receiver. The interference cancelled baseband signal is the received baseband antenna signal minus users' signal interference contributions whose demodulated physical data channel signals have a determined user symbol energy value that exceeds a threshold. Methods further include removing interference from a user's signal to be error corrected.

Abstract: A method of determining coverage areas in a communication system includes determining, by a controller, a plurality of base stations in the communication system and determining, by the controller, a Voronoi region for each of the plurality of base stations. The Voronoi region corresponds to the coverage area for the base station. Each location in the Voronoi region is closest to the base station than any other base station of the plurality of base stations.

Abstract: Example embodiments include methods of interference cancellation at NodeB receivers of baseband antenna signals including physical channels. The methods include canceling interference from a received baseband antenna signal by removing a reconstructed baseband signal from the processed received baseband antenna signal. The processed reconstructed baseband signal includes users whose physical data channel signals were successfully decoded. Methods also include removing interference from a received baseband signal to form an interference cancelled baseband signal that will be processed by the receiver. The interference cancelled baseband signal is the received baseband antenna signal minus users' signal interference contributions whose demodulated physical data channel signals have a determined user symbol energy value that exceeds a threshold. Methods further include removing interference from a user's signal to be error corrected.

Abstract: Example embodiments include methods of interference cancellation at NodeB receivers of baseband antenna signals including physical channels. The methods include canceling interference from a received baseband antenna signal by removing a reconstructed baseband signal from the processed received baseband antenna signal. The processed reconstructed baseband signal includes users whose physical data channel signals were successfully decoded. Methods also include removing interference from a received baseband signal to form an interference cancelled baseband signal that will be processed by the receiver. The interference cancelled baseband signal is the received baseband antenna signal minus users' signal interference contributions whose demodulated physical data channel signals have a determined user symbol energy value that exceeds a threshold. Methods further include removing interference from a user's signal to be error corrected.

Abstract: Example embodiments include methods of interference cancellation at NodeB receivers of baseband antenna signals including physical channels. The methods include canceling interference from a received baseband antenna signal by removing a reconstructed baseband signal from the processed received baseband antenna signal. The processed reconstructed baseband signal includes users whose physical data channel signals were successfully decoded. Methods also include removing interference from a received baseband signal to form an interference cancelled baseband signal that will be processed by the receiver. The interference cancelled baseband signal is the received baseband antenna signal minus users' signal interference contributions whose demodulated physical data channel signals have a determined user symbol energy value that exceeds a threshold. Methods further include removing interference from a user's signal to be error corrected.

Abstract: A method of determining coverage areas in a communication system includes determining, by a controller, a plurality of base stations in the communication system and determining, by the controller, a Voronoi region for each of the plurality of base stations. The Voronoi region corresponds to the coverage area for the base station. Each location in the Voronoi region is closest to the base station than any other base station of the plurality of base stations.

Abstract: The present invention provides a method of processing a baseband signal including user signals transmitted by a plurality of users. The method includes applying frequency offset compensations to the baseband signal, thereby to form respective frequency-shifted baseband signals. Each frequency compensation shifts the baseband signal by a multiple of a selected frequency offset and each resulting frequency-shifted baseband signal includes frequency-shifted user signals. The method also includes assigning at least some of the frequency-shifted user signals to groups. Each group corresponds to one of the frequency compensations and the assignment is carried out so that each group includes frequency-shifted user signals that have an estimated frequency offset that lies within a range determined by the corresponding frequency compensation.

Abstract: Example embodiments include methods of interference cancellation at NodeB receivers of baseband antenna signals including physical channels. The methods include canceling interference from a received baseband antenna signal by removing a reconstructed baseband signal from the processed received baseband antenna signal. The processed reconstructed baseband signal includes users whose physical data channel signals were successfully decoded. Methods also include removing interference from a received baseband signal to form an interference cancelled baseband signal that will be processed by the receiver. The interference cancelled baseband signal is the received baseband antenna signal minus users' signal interference contributions whose demodulated physical data channel signals have a determined user symbol energy value that exceeds a threshold. Methods further include removing interference from a user's signal to be error corrected.

Abstract: The present invention provides a method of processing a baseband signal including user signals transmitted by a plurality of users. The method includes applying frequency offset compensations to the baseband signal, thereby to form respective frequency-shifted baseband signals. Each frequency compensation shifts the baseband signal by a multiple of a selected frequency offset and each resulting frequency-shifted baseband signal includes frequency-shifted user signals. The method also includes assigning at least some of the frequency-shifted user signals to groups. Each group corresponds to one of the frequency compensations and the assignment is carried out so that each group includes frequency-shifted user signals that have an estimated frequency offset that lies within a range determined by the corresponding frequency compensation.

Abstract: An antenna array includes four closely spaced, linearly arranged antenna columns. At least two of the columns, e.g., the center two columns, are dual-polarized. Spacing between neighboring columns is about ½?, where ? is the free space wavelength at the network carrier frequency. Each column includes a first vertical linear array of radiating elements or groups of elements (sub-arrays) connected to a port. The dual-polarized columns each further include a second linear array of radiating elements oriented at a different polarization than the first array. (For example, horizontal/vertical or slant 45°.) Array ports are connected with four RF feed cables using duplexers in such a way so as to provide two different antenna configurations for forward link and reverse link frequencies, namely, a four-column closely spaced beam-forming array at the forward link and a two-column dual-polarized array at the reverse link for 4-branch diversity reception.

Abstract: Spatial Division Multiple Access (SDMA) may be implemented in both the forward and reverse link directions through the use of, for example, a sector-wide primary pilot channel and one or more beamformed secondary pilot channels (secondary pilot channel).

Abstract: The present invention provides a method and apparatus for an intelligent antenna receiver architecture. The method includes receiving a first plurality of signals corresponding to a plurality of antennas, determining at least one value indicative of a non-random portion of the first plurality of signals, and modifying the first plurality of signals based upon the at least one value indicative of the non-random portion of the first plurality of signals to form a second plurality of signals.