Method of determining reference signal receiving power

A technology for receiving power and reference signals, applied in wireless communication, electrical components, etc., can solve the problems of difficult application and high complexity, and achieve the effect of ensuring operation accuracy and low operation complexity

Inactive Publication Date: 2014-12-03
POTEVIO INFORMATION TECH
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Problems solved by technology

[0005] It can be seen from the above method that the existing RSRP averaging method involves exponential operation and logarithmic operation. Since the complexity of these two operations is relatively high, especially when there are many values ​​involved in the average operation, it is difficult to apply Actual network operation

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[0013] In order to make the purpose, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0014] The core idea of ​​the present invention is to determine the average value of RSRP based on the three RSRP values ​​reported by the UE. Here, a reference ratio ρ is introduced 2log =y 2 -y 1 ,y 3 ≤y 2 ≤y 1 ,y 1 、y 2 and y 1 is the RSRP power value of the reported 3 logarithmic domain values, x 1 , x 2 and x 3 respectively for y 1 、y 2 and y 1 RSRP power value before converting into logarithmic domain value, according to ρ 2log The range of values ​​and the maximum error value allowed by the system, predetermine the ρ 2log The value of the intermediate operation parameter corresponding to each sub-range at the maximum error value in the value range of , the intermediate operation parameter and y 1 Summing up, you can...

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Abstract

The invention discloses a method of determining reference signal receiving power. According to the method, a reference ratio rho2log=y2-y1 and an intermediate calculation parameter f(rho2log, sigmamin, sigmamax) are introduced, wherein y3, y2, y1 are reported RSRP power values of three log domain values, and y3</=y2</=y1; according to the value range of the rho2log and the allowed maximum error value of the system, the value of the intermediate calculation parameter corresponding to each sub range when the maximum error value in the value range of the rho2log is met is determined in advance; and according to the belonging sub ranges of the rho2log corresponding to the RSRP power values of three log domain values reported currently by user equipment, the intermediate calculation parameter value corresponding to the sub region is determined, and the current RSRP log domain average value as described in the specification is obtained by using the intermediate calculation parameter value. By adopting the method of the invention, the RSRP log domain average value can be accurately determined, and calculation complexity can be greatly reduced.

Description

technical field [0001] The present invention relates to mobile communication technology, in particular to a method for determining Reference Signal Received Power (RSRP). Background technique [0002] In a wireless cellular system, user equipment (UE) physically measures the channel conditions of a cell before handover, and reports the measurement results to help the network arrange handover operations. Among them, the reference signal received power is a key measurement quantity. It measures the received power of a reference signal (Reference Signal, RS) in a certain frequency band, so as to obtain the signal strength in the frequency band. [0003] When it is considered that one independent RSRP value reported in one RSRP measurement cycle cannot accurately represent the received signal power of the measured cell, it is necessary to measure and report multiple independent RSRP values, and then average the multiple RSRP values. Normally, the reported RSRP value is in the ...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W24/08
Inventor 王单秦琦
Owner POTEVIO INFORMATION TECH
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