56 results about "Antenna tilt" patented technology

A dual polarized variable beam tilt antenna (10) having a plurality of offset element trays (12) each supporting pairs of dipole elements (14) to orient the dipole element pattern boresight at a downtilt. The maximum squint level of the antenna is a consistent downtilt off of boresight and which is at the midpoint of the antenna tilt range. The antenna provides a high roll-off radiation pattern through the use of Yagi dipole elements configured in this arrangement, having a beam front-to-side ratio exceeding 20 dB, a horizontal beam front-to-back ratio exceeding 40 dB, and is operable over an expanded frequency range.

A diversity antenna system with electrical tilt has two dual polarised, tilt adjustable antenna stacks (44A) and (44B) with physical separation providing space diversity. Each antenna stack (44A) or (44B) has two polarisations associated with independently adjustable electrical tilt angles. The electrical tilt angles of each antenna stack (44A) or (44B) are controlled to be equal to those of the other antenna stack to provide co- polarisation or anti-polarisation tilt coupling. The antenna system (40) may operate with multiple carrier frequencies each associated with a respective pair of polarisations of different antenna stacks (44A) and (44B) with co-polarisation or anti-polarisation tilt coupling. Antenna tilt angles are controllable so that different carrier frequencies are associatedwith independently adjustable angles of electrical tilt. The system may be used with groups of both contiguous and non-contiguous carrier frequencies.

A mounting apparatus for remotely adjusting the tilt and heading of cell antennas. Antenna tilt is provided by the cooperation of a hinged lower tilt bracket and an upper tilt bracket connected to the antenna by links. The upper tilt bracket is mounted to a vertically translating dust cover. Vertical motion of the dust cover is translated to tilting motion of the antenna by the links. Heading adjustment may be provided uniformly to entire sectors of antennas using a Pitman arm arrangement, or may be provided to each cell antenna individually using a helix heading adjustment apparatus.

Provided are a mobile communication system, a base station and a cell coverage control method whereby the mobile communication system can be operated such that the cell coverage is set to approximately a target value in a timely manner without any human efforts. In this mobile communication system, a mobile station reports, to the base station, positional information of the mobile station and a reception power value of a reference signal received from the base station. Based on the positional information and reception power value from the mobile station, the base station acquires a measured cell coverage, which is a result of cell coverage measurement, and further controls at least one of a plurality of parameters, which include the power of transmission to the mobile station and the antenna tilt angle, such that the error between the measured cell coverage and a target cell coverage is reduced.

An assembly for a mobile communications antenna system includes a bracket assembly onto which an antenna array is mounted. The bracket assembly includes a steering arrangement configured to provide angular adjustment of an antenna beam azimuth, and an electromechanical tilting arrangement configured to adjust a tilt position of the antenna array. The steering arrangement and the electromechanical tilting arrangement are controllable in remote and manual operational modes to independently and variably adjust both azimuthal angle and tilt position of the antenna array. These operational modes ensure remote control of signal propagation and network coverage accuracy, and manual adjustment of the azimuth of the antenna beam and tilt position of the antenna array in case of field service or component failure.

A two-way terrestrial antenna, employing electrical down tilt and azimuth beam adjustment capability is disclosed. Such antenna configuration allows for a variable antenna coverage footprint within designated coverage sector. To compensate for installation support structure variations the two-way antenna employs a positional sensor that can provide feedback to BTS or automatically compensate azimuth and tilt beam angles so as to provide uniform sector coverage. In particular by monitoring tri-vector gravitational inclinometer and earth magnetic field sensors, and determining correction factors for antenna tilt and azimuth beam adjustments, uniform or compensated sector coverage is provided.

The invention relates to a self-optimization method for a concentrated clustering type self-organization network (SON), belonging to the field of digital communication. The method comprises the following steps of: gathering cells with stronger relativity into a cluster, arranging SON entities in the cluster and a network management center, coarsely adjusting each cluster firstly, determining whether the parameter such as antenna tilt, antenna azimuth or downlink transmission power of each cell in the cluster needs to be adjusted, and if the parameter needs to be adjusted, outputting a parameter adjusting instruction; adjusting relevant parameters of the corresponding base station in the cluster; after coarse adjustment, computing the capacity and coverage indexes in the cluster by the SON entity in each cluster according to the adjusted parameters; and inputting the capacity and coverage index parameters in each cluster into a SON control ring of the network management center by the network management center, then evaluating the integral capacity and coverage indexes of each cluster, and determining whether to finely adjust the relevant parameters of all base stations in the corresponding clusters. In the invention, coarse adjustment and fine adjustment are carried out sequentially, thereby better achieving global optimization.

Using High-beam and low-beam transmission signals that have different antenna tilts, different beam-widths, and different polarizations than one another may provide performance advantages in wireless networks. The high-beam transmission signal and the low-beam transmission signal may have orthogonal polarizations. For example, the high-beam transmission signal and the low-beam transmission signal may be linearly polarized signals having different electromagnetic field (E-field) polarization angles with respect to the y-axis, e.g., + / − forty-five degrees with respect to a vertically polarized wave. As another example, the high-beam transmission signal may be a vertically polarized signal, and the low-beam transmission signal may be a horizontally polarized signal, or vice-versa. In addition to having orthogonal polarizations, the low-beam transmission signal may have a greater antenna beam down-tilt angle, and a wider beam-width than the high-beam transmission signal.

Optimization of a wireless communications network may be accomplished by evaluating relationships between a source cell and a plurality of target cells, determining an optimization value based on the evaluated relationships, and adjusting an antenna parameter of the source cell based on the optimization value.

Embodiments are directed towards providing 5G zero touch traffic management of cells in a network. A target cell associated with a network objective is identified. One or more neighbor cells are also identified. Transmit power and tilt capabilities of the target cell are determined. An interference between the target cell and the one or more neighbor cells is also determined. An electrical antenna tilt adjustment or a transmit power adjustment is determined for the target cell to apply based on the transmit power capabilities, the tilt capabilities, the interference, and the network objective. The determined electrical antenna tilt adjustment or the determined transmit power adjustment are then provided to the target cell. If the network objective is met after the target cell applies the electrical antenna tilt adjustment or the determined transmit power adjustment, then the changes are confirmed, otherwise they are reversed.

A method 100 of managing the tilt of an antenna providing network coverage over a coverage area is disclosed. The method includes obtaining an elevation model 100A of the coverage area, and calculating an antenna attenuation 100B for a point on the elevation model according to a reference antenna inclination and a proposed antenna inclination. The method 100 also includes using the calculated attenuation to predict an impact 100C on network traffic distribution within the coverage area of ​​a change from the reference antenna tilt angle to the proposed antenna tilt angle, and agreeing to the proposed antenna tilt angle if the predicted impact satisfies acceptability criteria. Use 100D. Also disclosed are apparatuses and computer program products configured to perform the method of managing the tilt of an antenna.

The invention discloses a phased array antenna inclination coordinated adjustment method, system, terminal and medium, and relates to the technical field of phased array antennas. The key points of the technical solution are: establishing a mechanical dynamic adjustment model; Calculate the ratio of the maximum value of the azimuth scanning range of the antenna to obtain the synergy coefficient; input the synergy coefficient into the mechanical dynamic adjustment model to calculate the mechanical adjustment azimuth; obtain the corresponding error correction angle according to the synergy coefficient matching, and combine the theoretical compensation azimuth and mechanical adjustment The azimuth angle is calculated to obtain the actual compensation azimuth angle of the phased array antenna scanning; after the actual compensation azimuth angle is converted into the compensation phase, the phase shift adjustment is performed on the phased array antenna, and at the same time, the mechanical control platform is controlled according to the mechanical adjustment azimuth angle and the compensation pitch angle. Realize the cooperative adjustment of scanning inclination. The invention synchronously and dynamically adjusts the phased array antenna and the mechanical control platform, which is beneficial for the phased array antenna to complete scanning in a timely, stable and accurate manner.

The invention relates to the field of the electric power transmission engineering, and discloses a device for monitoring tilting, sinking and horizontal shifting of a double-antenna power transmission line tower. The device is capable of monitoring tilting, sinking and horizontal shifting of a power transmission line tower in an unfavorable geology region, and used for solving the technical problem that an existing power transmission line tower tilting detection device is incapable of really measuring the tilt angle of the tower and also fails in measuring sinking and horizontal shifting values of the tower. A system for monitoring tilting, sinking and horizontal shifting of the double-antenna power transmission line tower comprises a base station and a mobile station; the base station is used for receiving GNSS positioning information and also providing correction information for the mobile station; the mobile station comprises a double-antenna GNSS satellite receiving panel, and a data radio station and a management circuit which are connected with the GNSS satellite receiving panel, respectively; the management circuit of the base station is connected with a first GSM device; the signal input end of the GNSS satellite receiving panel of the base station is connected with a base station positioning antenna; the management circuit of the mobile station is connected with a second GSM device; the signal input end of the GNSS satellite receiving panel of the mobile station is connected with a mobile station positioning antenna and a mobile station direction-finding antenna, respectively, wherein the mobile station positioning antenna and the mobile station direction-finding antenna are mounted on the power transmission line tower.