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Noise energy estimation method and equipment

A noise energy and equipment technology, which is applied in the field of noise energy estimation methods and equipment, can solve problems such as inaccurate noise energy, achieve the effect of eliminating inter-path interference and improving accuracy

Active Publication Date: 2014-03-26
SHANGHAI HUAWEI TECH CO LTD
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AI Technical Summary

Problems solved by technology

[0006] However, it can be seen from the characteristics of inter-path interference that the noise of each path of the UE contains useless signal energy. When the SNR increases, the useless signal energy also increases correspondingly, that is, the noise of each path of the UE also However, the inter-path interference occurs during data transmission, and the actual noise energy of the UE will not be affected by the inter-path interference, so the method of estimating the noise energy of the UE in the prior art makes the estimated noise energy not precise

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  • Noise energy estimation method and equipment
  • Noise energy estimation method and equipment

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Embodiment Construction

[0020] Embodiments of the present invention provide a method and device for estimating noise energy, which can improve the accuracy of estimating noise energy.

[0021] see figure 1 , an embodiment of the noise energy estimation method of the present invention includes:

[0022] 101. Perform equalization processing on the DPCCH signal sent by the UE through an equalization receiver;

[0023] In this embodiment, when the estimating device needs to estimate the noise energy of a certain UE, it can first perform equalization processing on the DPCCH signal sent by the UE through an equalization receiver, specifically, a RAKE equalization receiver can be used to perform equalization processing. It can be understood that , in practical applications, in addition to the RAKE equalization receiver, other similar equalization receivers can also be used for equalization processing, which is not limited here.

[0024] It should be noted that the estimating device in this embodiment may ...

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Abstract

The embodiment of the invention discloses a noise energy estimation method and equipment, which can improve the accuracy of noise energy estimation. The method disclosed by the embodiment of the invention comprises the following steps of: balancing a DPCCH (Dedicated Physical Control Channel) channel sent by UE (User Equipment) through a balancing receiver; acquiring the balanced noise energy of the UE according to a Q-channel signal and / or an I-channel signal of the balanced DPCCH signal; and converting the balanced noise energy into noise energy before balanced according to a balancer weight corresponding to the balancing receiver. By means of the embodiment of the invention, the accuracy of noise energy estimation is effectively improved.

Description

technical field [0001] The present invention relates to the communication field, in particular to a method and equipment for estimating noise energy. Background technique [0002] With the introduction of High Speed ​​Uplink Packet Access (HSUPA, High Speed ​​Uplink Packet Access) technology, in order to achieve a peak rate of up to 5.7Mbps, user equipment (UE, User Equipment) has a higher transmit power than UE of R99 users. out a lot. Therefore, for HSUPA users, the inter-path interference is far greater than the interference brought by other low-speed users in the local cell and / or other cells. [0003] In the Wideband Code Division Multiple Access (WCDMA, Wideband Code Division Multiple Access) network, power control is used to eliminate the near-far effect. Specifically, the base station estimates the signal-to-interference ratio (SIR, Signal Interference) of each UE in the serving cell in each time slot. Ratio), when the estimated SIR of a certain UE is higher than t...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L25/02H04L25/03
Inventor 王宁李乐亭
Owner SHANGHAI HUAWEI TECH CO LTD
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