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Radio resource control method and device

A technology of radio resource control and component carrier, applied in wireless communication, transmission path separation device, transmission monitoring, etc., can solve problems such as power imbalance between carriers, communication performance degradation, etc., to improve communication performance and reduce image interference Effect

Inactive Publication Date: 2012-05-09
深圳市恒程汇文化科技有限公司
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  • Application Information

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Problems solved by technology

[0005] In view of this, the main purpose of the present invention is to provide a radio resource control method and device to solve the problem of communication performance degradation caused by power imbalance between component carriers with similar frequencies in the carrier aggregation scenario

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Embodiment Construction

[0032] The technical solutions of the present invention will be further elaborated below in conjunction with the accompanying drawings and specific embodiments.

[0033] The inventor found in practice that the image interference problem caused by the power imbalance of adjacent component carriers mainly meets the following conditions:

[0034] 1. There are at least two or more component carriers close to the center carrier;

[0035] 2. There is a power imbalance on component carriers that exceeds a certain threshold. After a lot of experiments and simulations, it is generally considered that this threshold is 6dB is more appropriate. Of course, the smaller the threshold, the smaller the image interference.

[0036] Only when the above two conditions are met at the same time will there be serious system communication performance degradation. Otherwise, as long as the UE receiver meets the image suppression requirements specified in the standard, the image interference caused by...

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Abstract

The invention discloses a radio resource control method and device. The radio resource control method comprises the following steps that: UE (user equipment) detects the RSRP (reference signal receiving power) of each component carrier, and judges whether the generation condition of power imbalance image interference is met based on the detection result; and if judgment result shows that the generation condition of the power imbalance image interference is met, a preset power imbalance image interference avoidance strategy is performed. According to the invention, the problem of communication performance reduction due to power imbalance among component carriers which are similar in frequency is solved under a carrier aggregation scene.

Description

technical field [0001] The present invention relates to the carrier aggregation (CA, CarrierAggregation) technology in the enhanced long-term evolution (LTE-A, Long Term Evolution-Advanced), in particular to a radio resource control method and device. Background technique [0002] In order to meet the future peak rate requirements of the International Telecommunications Union (ITU, International Telecommunications Union), LTE-A currently supports a maximum bandwidth of 100MHz. However, it is difficult to find such a large bandwidth in the existing available spectrum resources, and large bandwidth is provided for base stations and terminals. The hardware design brings great difficulties. In addition, for spectrum resources scattered in multiple frequency bands, a technology is urgently needed to make full use of them. Based on the above considerations, LTE-A introduces the key technology of carrier aggregation. [0003] In carrier aggregation, the power imbalance between mu...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W72/08H04W72/54
CPCH04L5/0062H04L5/0044H04L5/00H04L5/001H04B17/318H04W72/0453H04L5/0098H04W72/542H04W72/541
Inventor 郭胜祥
Owner 深圳市恒程汇文化科技有限公司