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Beam forming using an antenna arrangement

A technology of beamforming and antenna array, applied in the direction of antenna support/installation device, antenna, antenna parts, etc., can solve the problems of multiple resource elements, long time, consumption, etc.

Active Publication Date: 2018-12-21
TELEFON AB LM ERICSSON (PUBL)
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

A potential disadvantage of this approach is that it takes longer and consumes more resource elements than using a wide beam to send broadcast data simultaneously in all directions

Method used

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  • Beam forming using an antenna arrangement
  • Beam forming using an antenna arrangement
  • Beam forming using an antenna arrangement

Examples

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Embodiment

[0143] 1. A method of beamforming using an antenna array (1) comprising dual polarized elements, comprising:

[0144] generating (S102) one or two beam ports, wherein one or two beam ports are defined by combining at least two non-overlapping subarrays,

[0145] Wherein, each sub-array has two sub-array ports, and the two sub-array ports have the same power pattern and mutually orthogonal polarizations A and B,

[0146] Wherein, the at least two non-overlapping sub-arrays are expanded by weight w A and w B are combined, and each extended weight is of length M, where M≥2 is any integer, where the extended weight w A Applied to polarization A, scaling weights w B applied to polarization B,

[0147] Among them, the expansion weight w A and w B mapping one or both beam ports to subarray ports such that one or both beam ports have the same power pattern as the subarray, and

[0148] where at least some of the extended weights w A and w B have the same non-zero magnitude an...

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PUM

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Abstract

There are provided mechanisms for beam forming using an antenna array comprising dual polarized elements. A method comprises generating one or two beam ports. The one or two beam ports are defined bycombining at least two non-overlapping subarrays. Each subarray has two subarray ports. The two subarray ports have identical power patterns and mutually orthogonal polarizations. The at least two non-overlapping subarrays are combined via expansion weight vectors or expansion weight arrays. The expansion weights and map the one or two beam ports to subarray ports such that the one or two beam ports have the same power pattern as the subarrays. At least some of the expansion weights have identical non-zero magnitude and are related in phase to form a transmission lobe. The method comprises transmitting signals using said one or two beam ports.

Description

technical field [0001] Embodiments presented herein relate to beamforming, and more particularly to methods, antenna arrays and computer programs for beamforming using antenna arrays comprising dual polarized elements. Background technique [0002] In wireless communication networks, antenna design can be the key to good performance and capacity. This applies to wireless communication from a network node to a wireless user terminal or vice versa as well as between two network nodes. For example, massive beamforming, that is, beamforming using active antenna arrays (where there are orders of magnitude more antenna elements than in current communication networks), is expected to be the radio access part of future fifth-generation (5G) communication networks technology components in . Through the deployment of a large antenna array at the radio base station, user data can be sent focused in space such that the energy is mainly received by the user data-focused wireless device...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01Q1/24H01Q3/26H01Q25/00
CPCH01Q1/246H01Q3/26H01Q25/002H04B7/0617H04W52/42H04B7/10H01Q3/40H01Q21/0037H04B7/0469H04B7/0691
Inventor M·吉尔克S·彼得松
Owner TELEFON AB LM ERICSSON (PUBL)
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