Abstract:
The present invention relates to an antenna array (230) for supporting multiple beam architectures. For example, a transceiver (200) may include an antenna array (230). The antenna array (230) includes a plurality of antenna elements, where the plurality of antenna elements is configured to support at least two beam architectures in a cell site ( 130). Each beam architecture is associated with a different configuration of sectors and beamforming signals. According to one embodiment, each beam architecture is associated with a different wireless standard. According to another embodiment, each beam architecture is associated with a different carrier within one wireless standard. The antenna elements may be arranged as a circular array.
Abstract:
The present invention relates to an antenna array (230) for supporting multiple beam architectures. For example, a transceiver (200) may include an antenna array (230). The antenna array (230) includes a plurality of antenna elements, where the plurality of antenna elements is configured to support at least two beam architectures in a cell site ( 130). Each beam architecture is associated with a different configuration of sectors and beamforming signals. According to one embodiment, each beam architecture is associated with a different wireless standard. According to another embodiment, each beam architecture is associated with a different carrier within one wireless standard. The antenna elements may be arranged as a circular array.
Abstract:
According to a method for localizing a transmitter inside a building, a transmitter emits rays which undergo multiple reflections with the walls, ceilings and floors of the building. Each of K receivers receives rays from the transmitter, and the receivers estimates the AOA (Angle of arrival), TOA (Time of Arrival) and power of each ray. At least one of the receivers uses a known blueprint of the building and material characteristics of the walls to localize the transmitter to a higher degree of accuracy by applying a backward ray tracing algorithm.
Abstract:
The present invention relates to a conformal antenna array. Embodiments of the present invention provide a transceiver (200) for communicating data in a cell site ( 130) of a wireless communication system. The transceiver (200) includes the conformal antenna array (230) including a plurality of antenna elements (235), where the plurality of antenna elements (235) has a non-linear antenna configuration to occupy at least two dimensions, and a controller (210) configured to transmit multiple beamforming signals using at least two same antenna elements of the plurality of antenna elements (235).
Abstract:
In one embodiment, the method of compressing a digital signal includes reducing (S500) redundancies in the digital signal, scaling (S510) a block of samples output from the reducing step by a scaling factor, and quantizing (S520) the scaled samples to produce compressed samples. The digital signal being compressed may be a digital radio frequency signal.
Abstract:
According to a method for localizing a transmitter inside a building, a transmitter emits rays which undergo multiple reflections with the walls, ceilings and floors of the building. Each of K receivers receives rays from the transmitter, and the receivers estimates the AOA (Angle of arrival), TOA (Time of Arrival) and power of each ray. At least one of the receivers uses a known blueprint of the building and material characteristics of the walls to localize the transmitter to a higher degree of accuracy by applying a backward ray tracing algorithm.