Abstract:
A method, system, and medium are provided for dynamically adjusting an angular orientation of cross-polarized antenna array elements to optimize select radio-frequency (RF) parameters. RF uplink signals are received from a plurality of mobile devices, and the signals are analyzed to determine parameters associated with signal strength and/or signal quality. Based on the determination, a first set of cross-polarized antenna array elements are deactivated and a second set of cross-polarized antenna array elements are activated, where the second set of antenna array elements has a different angular orientation relative to the first set of antenna array elements. Activation enables the second set of antenna array elements to transmit and receive communication signals.
Abstract:
Examples disclosed herein provide systems, methods, and software for operating a wireless base station with dynamic pilot signals. In one example, a method of operating a wireless base station includes transmitting a first pilot signal at a first pilot frequency centered in a frequency band, wirelessly receiving first user data using a first filter configuration to pass energy within the frequency band, and detecting a network condition. The method further includes, in response to detecting the network condition, terminating transmission of the first pilot signal, and transmitting second and third pilot signals at second and third frequencies. The method also includes wirelessly receiving second user data using a second filter configuration, and wirelessly receiving third user data using a third filter configuration.
Abstract:
An antenna monitoring system in one example embodiment includes a plurality of analog-to-digital (A/D) converters configured to receive a plurality of tapped antenna signals and generate a plurality of digitized antenna signals, and an antenna monitor coupled to the plurality of A/D converters and coupled to a Base Transceiver Station (BTS) of the distributed antenna system, with the antenna monitor comprising a storage system configured to store an antenna monitor routine and a plurality of per-antenna information, a communication transceiver configured to transfer the plurality of per-antenna information, and a processing system configured to receive the plurality of digitized antenna signals from the plurality of A/D converters, reverse-process the plurality of digitized antenna signals to generate the plurality of per-antenna information, and feed the plurality of per-antenna information back to the BTS, with the BTS using the plurality of per-antenna information to monitor the plurality of antenna sub-systems.
Abstract:
A device, method, and computer-readable medium are provided for adjusting omnidirectional antenna array elements for mitigating cross interference between communication network cells. Radially disposed antenna array elements are configured to collectively function as a single omnidirectional antenna assembly at a cell. Signal data associated with signal strength and/or quality is monitored and received. Based on the signal data received, at least one antenna array element is selected for disconnection from the antenna assembly. The at least one antenna array element is disconnected from the assembly to nullify at least a portion of the omnidirectional signal distributed therefrom, thereby mitigating cross-interference with a neighboring cell.
Abstract:
Systems, methods, and computer-readable media for optimizing coverage for a cell site are provided. Cell sites are typically configured with antennas that emit a standard petal lobe pattern for a sector. The needs of the sector are not taken into account since a standard pattern is emitted for all antennas. The antennas may be adjusted at times to increase signal strength to particular regions but the pattern then returns to the standard petal pattern. Customized patterns may be created in order to optimize coverage for a sector. Sector needs may be taken into consideration such as object interference, geographical information, population data, and the like, in order to crate the customized pattern for a sector. The antenna may then emit the customized pattern for a predetermined length of time as a static pattern for that cell site.
Abstract:
In a Long Term Evolution (LTE) communication system, a User Equipment (UE) receives Mobility Management Entity (MME) selection data. The UE processes the MME selection data to select one of multiple MMEs. The UE wirelessly transfers an LTE attachment request to an LTE access point. The LTE attachment request indicates the selected MME. The UE wirelessly receives an attachment acceptance from the selected MME through the LTE access point in response to selecting and indicating the MME in the LTE attachment request.
Abstract:
In a Long Term Evolution (LTE) communication system, a User Equipment (UE) receives Mobility Management Entity (MME) selection data. The UE processes the MME selection data to select one of multiple MMEs. The UE wirelessly transfers an LTE attachment request to an LTE access point. The LTE attachment request indicates the selected MME. The UE wirelessly receives an attachment acceptance from the selected MME through the LTE access point in response to selecting and indicating the MME in the LTE attachment request.
Abstract:
A wireless communication device to facilitate determination of frequency band information comprises a processing system and a wireless communication transceiver. The processing system is configured to identify a carrier frequency stored within the wireless communication device and determine a direct current (DC) subcarrier associated with the carrier frequency. The wireless communication transceiver is configured to synchronize with the DC subcarrier to obtain channel information, wherein the channel information comprises a channel size and a DC subcarrier offset. The processing system is configured to process the DC subcarrier with the DC subcarrier offset to determine a starting frequency of a frequency band associated with the carrier frequency.
Abstract:
Increased energy efficiency of a small cell antenna is provided. Electromagnetic energy radiated outside the desired radiation pattern of a small cell antenna is wasted. An antenna is provided which includes a circular set of antenna elements having a plurality of radio-frequency (RF) reflectors positioned within and around the circumference of the set of antenna elements facing substantially outward. Each RF reflector is configured to reflect the RF signal transmitted from the ring outwardly from a corresponding antenna element at an angle with respect to the plane of the circular set of antenna elements. By adjusting the angles of the reflectors, the signal may be reflected downward toward target areas that are nearer or farther from the small cell.
Abstract:
A wireless communication system provides call routing when the connection to a core network is lost. A base station wirelessly exchanges data packets associated with one or more communication sessions with one or more wireless communication devices. An Internet Protocol (IP) router scans the data packets to identify active users on the base station. The IP router generates a database of the active users. The IP router detects a loss of connection to the core network and determines which of the communication sessions can be maintained based on the database of active users. The IP router routes the data packets for the communication sessions that can be maintained back to the base station for delivery.