Angle of arrival estimation in radio communications network
A radio signal and angle of arrival technology, applied in wireless communication, direction finders using radio waves, radio transmission systems, etc., can solve the problems of expensive time consumption and overhead signaling, large overhead signaling and time consumption, etc. Realize the effect of beam management, efficient beam management, and time reduction
Active Publication Date: 2019-12-17
TELEFON AB LM ERICSSON (PUBL)
View PDF4 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
This beam sweeping process can be expensive in terms of time consumption and overhead signaling when there are many candidate beams
Especially for analog and hybrid antenna array implementations where beams must be scanned in a sequential fashion, beam training can require large overhead signaling and time consumption
This becomes even more challenging if an antenna array with simulated beamforming is used at both the TRP and the radio, since in an exhaustive beam search, for each TRP beam, all the beams at the radio need to be tested. candidate beam
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0029] The inventive concept will now be described more fully hereinafter with reference to the accompanying drawings, in which certain embodiments of the inventive concept are shown. However, inventive concepts may be embodied in many different forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided by way of example so that this disclosure will be thorough and complete, and The scope of the inventive concept will be fully conveyed to those skilled in the art. Like numbers refer to like elements throughout the description. Any steps or features shown with dashed lines should be considered optional.
[0030] figure 1is a schematic diagram illustrating a communication network 100 in which embodiments presented herein may be applied. The communication network 100 may be a third generation (3G) telecommunication network, a fourth generation (4G) telecommunication network or a fifth (5G) telecommunication network ...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
Login to View More Abstract
There is provided mechanisms for estimating angle of arrival of a radio signal in a radio communications network. A method is performed by a radio transceiver device. The radio transceiver device comprises an antenna array that, by means of analog beamforming, is configured to shift between at least two phase center locations. The method comprises obtaining measurements of the radio signal as received by the antenna array using two mutually different phase center locations. The method comprises estimating the angle of arrival of the radio signal using the measurements as obtained using the twomutually different phase center locations.
Description
technical field [0001] Embodiments presented herein relate to a method, a radio transceiver arrangement, a computer program and a computer program product for estimating an angle of arrival of a radio signal in a radio communication network. Background technique [0002] In a communication network, there may be challenges in obtaining good performance and capacity for a given communication protocol, its parameters, and the physical environment in which the communication network is deployed. [0003] For example, for future generations of mobile communication systems, frequency bands at many different carrier frequencies may be required. For example, such low frequency bands may be required to achieve adequate network coverage for wireless devices, and higher frequency bands (e.g., at millimeter wavelength (mmW), i.e., near and above 30 GHz) may be required to achieve the desired network capacity. In general, at high frequencies the propagation characteristics of the radio ...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More Patent Type & Authority Applications(China)
IPC IPC(8): H04B7/06G01S3/00H04B7/08
CPCH04B7/0617H04B7/0848H04B7/086G01S3/04G01S3/16G01S3/48G01S3/00H04B7/06H04B7/08H04W72/51H04B17/27H01Q3/267H04L5/0023H04L5/0053H04W72/0446
Inventor S.彼得森A.尼尔森F.阿斯利
Owner TELEFON AB LM ERICSSON (PUBL)