Antenna control apparatus, portable electronic device and antenna control method

An electronic device, antenna control technology, applied in diversity/multi-antenna systems, space transmit diversity, prevention/detection of errors through diversity reception, etc.

Active Publication Date: 2015-06-24
LENOVO (BEIJING) LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the inventor found in the process of implementing the embodiment of the present invention that there is no better control method for a multi-antenna system with reconfigurable pattern in the prior art

Method used

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  • Antenna control apparatus, portable electronic device and antenna control method
  • Antenna control apparatus, portable electronic device and antenna control method
  • Antenna control apparatus, portable electronic device and antenna control method

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Embodiment Construction

[0062] Before describing the embodiments of the present invention in detail, the theoretical basis of the embodiments of the present invention is described as follows.

[0063] Consider a transmit antenna number N t , the number of receiving antennas is N r The point-to-point MIMO system, the number of transmit antennas is selected as M t ,M t The value of is variable, and the dynamic value range is [1, min(N t , N r )], select a subset of transmitting antennas and denote S, at the receiving end, assuming that all N r Antennas are used to receive data, define a N for the receiving antenna r ×N r The correlation coefficient matrix of Define an N for the transmit antenna t ×N t The correlation coefficient matrix of Then N r ×N t The channel matrix can be expressed as:

[0064] H = R R x 1 / 2 H ...

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Abstract

The invention provides an antenna control apparatus, a portable electronic device and an antenna control method. The antenna control apparatus is used in the portable electronic device; the portable electronic device comprises a first reconfigurable antenna for wireless communication with a correspondent node, the first reconfigurable antenna has N working conditions, and a second antenna of the correspondent node has M antenna conditions, wherein N is not less than 2 and M is not less than 1; the antenna control apparatus comprises a first condition determining unit and a first antenna control unit, wherein the first condition determining unit is used for determining a first antenna condition set comprising a first condition from an antenna condition set formed by the first reconfigurable antenna and the second antenna, and when a receiver of the portable electronic device has maximum signal-to-noise ratio, the first reconfigurable antenna works in the first condition; and the first antenna control unit is used for controlling the first reconfigurable antenna when the portable electronic device receives data from the correspondent node, so as to make the first reconfigurable antenna work in the first condition. With the antenna control apparatus, the portable electronic device and the antenna control method, the throughput of a multi-antenna system with a reconfigurable directional pattern is improved.

Description

technical field [0001] The invention relates to a multi-antenna system, in particular to an antenna control device, a portable electronic device and an antenna control method. Background technique [0002] When using a fixed multi-antenna system on various portable electronic devices (such as notebook computers, mobile phones, PDAs, etc.), due to the influence of the metal back shell of the display screen, the antenna element pattern always faces the upper half space, the left half space, or the right half-space, and the pattern of the antenna is fixed, which causes the radiation beam pattern of the antenna system to be used is not rich enough, the pattern of the antenna unit is fixed, and the multiple-input multiple-output (MIMO) communication device cannot be used in various environments. In the case of incoming waves, the best communication effect is achieved. [0003] A multi-antenna system with reconfigurable pattern is a solution to this problem. However, the invento...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L1/06H04B7/06
Inventor 颜罡
Owner LENOVO (BEIJING) LTD
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