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Communication device and method and device for beam forming

A technology of communication equipment and equipment, which is applied in the field of beamforming and communication equipment, can solve the problems of low work efficiency, unfixed relative position, and the transmission path is easily blocked by the human body or other moving objects, so as to achieve the effect of improving work efficiency

Inactive Publication Date: 2014-05-21
ZTE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

On the other hand, since the relative position of the transmitter-receiver is not fixed, and the propagation path is easily blocked by the human body or other moving objects, shadow fading will also be formed
[0005] In the related technology, when the 60GHz directional antenna is performing beamforming, each antenna element can only be in the working state, and when scanning, it needs a lot of scanning to complete the precision search within a certain range, and the working efficiency is low. question

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  • Communication device and method and device for beam forming
  • Communication device and method and device for beam forming
  • Communication device and method and device for beam forming

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Embodiment 1

[0059] In related technologies, in addition to adjusting the antenna pointing, the MAC layer must be designed for the directional antenna, which will affect the efficiency of the MAC layer to a certain extent and reduce the effective data transmission data. In order to effectively combat high-path fading, high-gain antennas must be used to propagate radio waves in the desired direction. By reducing the width of the beam, the propagated energy is "focused" to overcome the high loss caused by path propagation. On the other hand, since the relative positions of the transmitting and receiving ends are not fixed, and the propagation path is easily blocked by the human body or other moving objects to form shadow fading, the transmitting and receiving antennas must have the ability of beam steering and beam alignment, so that the transmitting and receiving The antenna beams together form a complete wireless channel. At the same time, since the millimeter-wave array antenna has a narr...

Embodiment 2

[0070] In this preferred embodiment, the transmitting end and the receiving end are configured with the same 8 element array antenna elements as an example to illustrate the process of the layered beamforming method of the uniform linear array.

[0071] Such as Figure 9 As shown, in the process of beamforming the first layer, the first and fifth antennas are selected for beamforming, and M training symbols are transmitted in N directions respectively. Similarly, at the receiving end, the first and fifth roots can also be selected for receiving beamforming. The receiving end selects a better transmission channel according to the received training symbols and feeds back to the transmitting end. The first-level beamforming is completed. .

[0072] Such as Figure 10 As shown, in the beamforming process of the second level, the 1st, 3rd, 5th, and 7th four antenna elements participate in beamforming. The transmitter uses the 1st, 3rd, 5th, and 7th array elements to form smaller...

Embodiment 3

[0076] In this preferred embodiment, the process of the layered beamforming method of the non-uniform linear array is described by taking the antenna elements of the same 9-element array configured at the transmitting end and the receiving end as an example.

[0077] Such as Figure 12 As shown, in the process of beamforming the first layer, the first and third antennas are selected for beamforming, and M training symbols are transmitted in N directions respectively. Similarly, at the receiving end, the first and third roots can also be selected for receiving beamforming. The receiving end selects a better transmission channel according to the received training symbols and feeds back to the transmitting end. The first-level beamforming is completed. .

[0078] Such as Figure 13 As shown, in the second-level beamforming process, the 1st, 3rd, 5th, and 6th four antenna elements participate in beamforming. The transmitting end uses the 1st, 3rd, 5th, and 6th array elements to...

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Abstract

The invention discloses a communication device and a method and device for beam forming. The communication device comprises N antenna array elements, a signal processing module and a control module, wherein the N antenna array elements can receive demands of the control module and keep a state of participating in work or a state of not participating in work; the signal processing module is used for processing to-be-sent signals and sending the processed signals through the antenna array elements participating in work; the control module is used for sending the demands, and the demands are used for indicating the antenna array elements participating in work among the N antenna array elements. The problem that when a 60GHz directional antenna performs beam forming, every antenna array element can only be in a working state, precision searching within a certain range can only be finished through scanning many times during scanning, and working efficiency is low is solved, the working state of every antenna array element can be controlled, beam forming search is finished through various working states, and working efficiency is improved.

Description

technical field [0001] The present invention relates to the communication field, and in particular, to a communication device, a beamforming method and a device. Background technique [0002] With the rapid popularization of high-definition video and the demand for large-scale communication, the low transmission data of Wi-Fi is increasingly unable to meet the requirements of practical applications. [0003] With the improvement of device manufacturing level and continuous maturity of technology, 60GHz wireless communication technology has gradually moved from theoretical research to practical application. The biggest advantage of 60GHz technology is that the transmission bandwidth is very wide. Near 60GHz, it can provide a transmission bandwidth of up to 5GHz at most, and the transmission rate can reach 1Gps, and the occupied working frequency band is license-free. Since the electromagnetic spectrum has a strong absorption peak at 60 GHz, the propagation attenuation of ele...

Claims

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Application Information

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IPC IPC(8): H04B7/06
CPCH04B7/0691H04B7/0874H04W16/28
Inventor 陈霖禹忠郭阳支周
Owner ZTE CORP
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