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A virtual antenna mapping method and device

A technology of virtual antenna mapping and virtual antenna, which is applied in the field of communication and can solve problems such as inability to demodulate data and inability to achieve demodulation.

Active Publication Date: 2017-06-20
HUAWEI TECH CO LTD
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  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

[0010] In this method, in highly correlated channels, that is, channels with uncertain phase differences between channels corresponding to different physical antennas, and the channel response of this channel is approximately H=[1 1 1 1], that is So when D is 1, and k=N FFT / 2, It is 0, that is, zero trap is generated, so the data received by the user side is 0, and demodulation cannot be realized, that is, the data cannot be demodulated due to the influence of zero trap

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  • A virtual antenna mapping method and device
  • A virtual antenna mapping method and device
  • A virtual antenna mapping method and device

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Embodiment Construction

[0076] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0077] figure 1 is a schematic flowchart of a virtual antenna mapping method provided by an embodiment of the present invention, as shown in figure 1 shown, including:

[0078] 101. Set N phase shift factors, where N is an integer greater than 0;

[0079] 102. Use the N phase shift factors to generate N PSD weights respectively, where different PSD weights among the N PSD weights include different phase shift factors;

[0080] Optionally, step 102 may include: ...

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Abstract

The embodiment of the present invention discloses a virtual antenna mapping method, including: setting N phase shift factors, where N is an integer greater than 0; using the N phase shift factors to generate N PSD weights, wherein the N Different PSD weights in the PSD weights include different phase shift factors; when data needs to be sent to the user equipment, the N PSD weights are used in turn to map the data that needs to be sent to the user side to the physical antenna, and Send the mapped data to the user equipment through the physical antenna. Correspondingly, the embodiment of the invention also discloses a network device. The embodiments of the present invention can reduce the influence of null traps on the user equipment.

Description

technical field [0001] The present invention relates to the communication field, in particular to a virtual antenna mapping method and device. Background technique [0002] At present, Multiple-Input Multiple-Output (MIMO) technology is widely used. When this technology is applied, the number of physical channels actually used may exceed the number of antenna ports defined by the protocol. For example, the number of antenna ports defined by the protocol is 1. The antenna can be used in practical applications, and the use of the antenna requires the use of 2, 4 or 8 physical antenna ports; the protocol defines that the number of antenna ports is 2. The antenna can be used in practical applications, and the use of the antenna requires the use of 4 or 8 physical antenna ports Ports; the protocol defines that an antenna whose number of antenna ports is 4 can be used in practical applications, and the use of this antenna requires 8 physical antenna ports. In this case, one anten...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04B7/06
CPCH04B7/0617
Inventor 张松易雄书向涛刘云
Owner HUAWEI TECH CO LTD
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