A method and device for optimizing the high uplink IOT in an LTE system

Abstract

The invention discloses a method and equipment for optimizing high uplink IOT in an LTE (Long Term Evolution) system. The method comprises the following steps: performing relatively-high IOT detection on each channel, acquiring exceptional channels and reporting an exception message; and determining whether to combine data of the exceptional channels or not in order to perform joint processing according to a quantity of the exceptional channels. Through single-channel IOT relatively-high warning, exceptional channels occurring already can be determined, and meanwhile a demodulation module of the base station can be informed not to select the exceptional channels to perform joint detection. Thus, an uplink operation amount is reduced; the uplink interference resistance is enhanced; and the uplink throughput of a user is improved.

Description

technical field [0001] The invention relates to a method and equipment for optimizing the high uplink IOT in an LTE system, and belongs to the technical field of communication. Background technique [0002] In an LTE (Long Term Evolution, long-term evolution) system, IOT (Interference over Thermal, interference thermal noise rise) is usually used to characterize the magnitude of uplink interference. Key technologies such as uplink power control and interference coordination in the LTE system are closely related to IOT. Therefore, the IOT is a very important measurement quantity in the LTE system, which affects the service operation of the uplink system of the LTE system. [0003] IOT is usually expressed in terms of power several times greater than thermal noise. Specifically, IOT=(I+N) / N. Among them, I represents received interference, and N represents thermal noise. And the minimum SINR of the base station is SINR=S / (I+N). From the two formulas, it can be seen that wh...

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Problems solved by technology

[0008] The current single-channel IOT real-time detection method mainly performs alarms and processing for single-channel IOT high and low, so as to facilitate the location of RRU single-channel faults and interference problems, but it is not very guiding for the actual troubleshooting of uplink services.

In the actual application process of the live network, it often occurs that the IOT value of a single channel (except all channels) is relatively high, but it has not yet reached the high threshold.

At this time, the system will not report an alarm to prompt the maintenance personnel to deal with it accordingly, but the quality of the uplink service has been greatly affected when the user maintains the uplink service

The uplink BLER (block error rate, block error rate) is high, resulting in a large drop in uplink business throughput, seriously affecting the user's business perception

If the maintenance personnel only configure a lower IOT high threshold value to trigger an alarm with a high IOT value of a single channel, and the subsequent processing method is to directly close the channel, then before the channel returns to normal, the user's uplink and downlink service quality will be affected. will be greatly affected

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