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Method and apparatus for transmitting data through polarized antenna

A technology for polarized antennas and data transmission, applied in the field of communications, can solve problems such as system performance deterioration and unsatisfactory system performance, and achieve the effect of reducing drawbacks

Inactive Publication Date: 2009-07-15
CHINA ACAD OF TELECOMM TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, in the scenario where the wireless channel changes rapidly, the system performance will be seriously deteriorated
[0004] To sum up, there is currently no solution for multiple groups of polarized antennas to provide services to users at the same time, and if the existing technology is directly applied, the system performance is not ideal

Method used

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  • Method and apparatus for transmitting data through polarized antenna
  • Method and apparatus for transmitting data through polarized antenna
  • Method and apparatus for transmitting data through polarized antenna

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Embodiment Construction

[0024] The embodiments of the present invention combine beamforming and time switching technologies to realize multi-sets of polarized antennas to transmit data to users and obtain diversity gain.

[0025] A group of polarized antennas in the embodiments of the present invention includes at least one antenna with a single polarization direction, and the polarization directions of multiple groups of polarized antennas are different.

[0026] see figure 1 , this embodiment provides a network-side device, configured to transmit data to a user through multiple groups of polarized antennas. The network side device may be a base station (Node B or Evolved Node B). It includes a first interface module 101 , a selection module 102 , a beamforming module 103 and a second interface module 104 .

[0027] The first interface module 101 is used to connect with other devices on the network side to obtain data to be sent. If the network side device includes a module for generating data, t...

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Abstract

The present invention discloses a method for transmitting data through polarized antenna. The invention is used for realizing data transmission through a plurality of groups of polarized antenna. The method comprises the following steps: obtaining the data to be transmitted by the network side; selecting one group of polarized antennae from at least two groups of polarized antennae by the network side for transmitting the data; and executing beamforming to the data by the network side and transmitting the data through the selected polarized antenna. The invention also discloses a method used for realizing the method.

Description

technical field [0001] The invention relates to the communication field, in particular to a method and a device for transmitting data through a polarized antenna. Background technique [0002] Dual-polarized antenna is a new type of antenna technology, which combines +45° and -45° two antennas with orthogonal polarization directions, and works in the transceiver duplex mode at the same time, each cell only needs one set of dual-polarized antennas antenna. Dual-polarized antennas allow the system to adopt polarization diversity reception technology. The principle is to use the uncorrelation between ±45° polarization directions. The degree of uncorrelation between the two determines the quality of diversity reception. Since ±45° is orthogonal polarization, it can effectively guarantee diversity reception, and its polarization diversity gain is about 5dB, which is about 2dB higher than the space diversity commonly used by single-polarization antennas. In addition, the space d...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04B7/06H04B7/10
Inventor 康绍莉郑银香徐红艳桑东升
Owner CHINA ACAD OF TELECOMM TECH