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Method and device for computing gains of multiple receiving links/transmitting links

A technology for receiving link gain and transmitting link, which is applied in the field of calculating the gain of multiple receiving links/transmitting links, and can solve the problems of large workload and long time-consuming manual measurement of the gain of receiving link/transmitting link, etc. Achieve the effect of saving measurement time and reducing workload

Inactive Publication Date: 2011-01-12
SHENZHEN HUAWEI AGISSON ELECTRIC CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Embodiments of the present invention provide a method and device for calculating gains of multiple receiving links / transmitting links, which are used to solve the problem of manual measurement of receiving links / transmitting links in the prior art when the number of receiving links / transmitting links is large. The defect of link gain is heavy workload and time-consuming

Method used

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  • Method and device for computing gains of multiple receiving links/transmitting links
  • Method and device for computing gains of multiple receiving links/transmitting links
  • Method and device for computing gains of multiple receiving links/transmitting links

Examples

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Embodiment 1

[0046] figure 1 A schematic flow chart of a method embodiment for calculating multiple receiving link gains in the present invention, such as figure 1 As shown, the method includes:

[0047] Step 101. Divide one calibration signal into multiple calibration signals, and couple the multiple calibration signals to each receiving link in multiple receiving links;

[0048] Specifically, the transmitted calibration signal may be divided into multiple calibration signals through a splitter, and the multiple calibration signals may be coupled to each of the multiple receiving chains through a directional coupler.

[0049] The present invention can be applied in a multi-antenna system, therefore, multiple receiving links may refer to multiple receiving links of the multi-antenna system.

[0050] Step 102, measure the frequency compensation data and temperature compensation data of the link where the calibration signal is located before being divided into multiple calibration signals, t...

Embodiment 2

[0065] figure 2 A schematic flow chart of a method embodiment for calculating multiple transmit link gains in the present invention, as shown in figure 2 As shown, the method includes:

[0066] Step 201, amplify the signal on each of the multiple transmission links, and couple a part of the signal from the amplified signal of each transmission link as a power control feedback signal to obtain a multi-channel power control feedback signal ;

[0067] The present invention can be applied in a multi-antenna system, therefore, multiple transmission links may refer to multiple transmission links of the multi-antenna system.

[0068] Step 202. Isolate and filter the amplified signal of each transmission link to obtain a multi-channel processed signal, and couple the processed signal of each transmission link in the multiple transmission links to Part of the signal is used as a calibration signal to obtain multiple calibration signals;

[0069] Specifically, the amplified signal...

Embodiment 3

[0089] image 3 A schematic structural diagram of an embodiment of a device for calculating the receiving link gain in the present invention, such as image 3 As shown, the device includes: a signal processing module 30, a splitter 31, a plurality of directional couplers 32 and a measurement module 33, wherein the signal processing module 30 includes a calibration unit 301 and a calculation unit 302;

[0090] A signal processing module 30, configured to use the calibration signal to calibrate each receiving link, and calculate the gain of each receiving link;

[0091] A splitter 31, configured to divide one calibration signal into multiple calibration signals, and send the multiple calibration signals to a plurality of directional couplers 32 respectively;

[0092] The directional coupler 32 is used to couple each calibration signal in the multiple calibration signals divided by the splitter 31 to each of the multiple receiving chains, and send it to the calibration unit 301 ...

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Abstract

The embodiment of the invention provides method and device for computing the gains of multiple receiving links / transmitting links, which belong to the technical field of wireless communication. The method comprises the following steps of: dividing one path of calibrating signal into multiple paths, and respectively coupling each path of calibrating signal to each receiving link; measuring the frequency compensation and temperature compensation data of the link in which one path of calibrating signal is before being divided into multiple paths; calibrating the receiving link to obtain the relevant peak amplitude value of each receiving link; and obtaining the gain of the calibrated link, and computing the gain of each receiving link. The device comprises a signal processing module, a divider, multiple directional couplers and a measuring module, wherein the signal processing module comprises a signal sending unit, a calibrating unit and a computing unit. The invention reduces the workload of measuring the gains of multiple receiving links and the gains of multiple transmitting links in a multi-antenna system, saves the measuring time and improves the accuracy and the consistency of the gains of the receiving / transmitting links.

Description

technical field [0001] Embodiments of the present invention relate to the technical field of wireless communication, and in particular, to a method and device for calculating gains of multiple receiving links / transmitting links. Background technique [0002] In a multi-antenna beamforming system, there are multiple transmit links and multiple receive links. When the system is running, the link gain value of each receive link needs to be obtained, and based on the link gain value of each receive link Calculate the received total wideband power (Received Total Wideband Power, hereinafter referred to as RTWP), and the obtained RTWP can be used to judge the interference situation of the entire network, so that the network side can judge the access according to the interference situation; it is also necessary to obtain the gain of each transmission link, Closed-loop power control is performed according to the transmission chain. [0003] In the prior art, when obtaining the link...

Claims

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Application Information

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IPC IPC(8): H04W24/08H04W52/08
CPCH04B17/0062H04B17/21
Inventor 李少明
Owner SHENZHEN HUAWEI AGISSON ELECTRIC CO LTD
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