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Mobile robustness optimization method by introducing UE specific handoff parameter

A technology for switching parameters and optimization methods, applied in electrical components, wireless communication, etc., can solve problems such as switching failure and failure to consider, achieve the effect of optimizing performance and improving the probability of successful switching

Inactive Publication Date: 2010-01-27
UNIV OF SCI & TECH OF CHINA
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Problems solved by technology

[0011] The purpose of the present invention is to solve the above-mentioned technical defects, that is, to solve the problem that the UE characteristics closely related to the handover are not considered in the handover process and mobile robustness The problem of handover failure caused by all UEs of neighboring eNBs using the same handover parameters

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  • Mobile robustness optimization method by introducing UE specific handoff parameter
  • Mobile robustness optimization method by introducing UE specific handoff parameter
  • Mobile robustness optimization method by introducing UE specific handoff parameter

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Embodiment Construction

[0031]Embodiments of the invention are described in detail below, examples of which are illustrated in the accompanying drawings. The embodiments described below by referring to the figures are exemplary only for explaining the present invention and should not be construed as limiting the present invention.

[0032] The present invention mainly introduces UE-specific handover parameters in mobile robustness optimization, allows eNB to maintain different handover parameters for UEs with different characteristics, and takes UE characteristics that affect handover effects into mobile robustness optimization, greatly improving The probability of successful handover optimizes the performance of MRO.

[0033] As an embodiment of the present invention, for UE rate, which is a UE-specific characteristic that affects handover performance, a UE rate-specific handover parameter is introduced Such as figure 2 shown.

[0034] In this embodiment, the eNB needs to maintain UE rate-speci...

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Abstract

The invention provides a mobile robustness optimization enhancing method (USP_MRO: User Specific Parameters in MRO) in a Long Term Evolution ADSL (LTE-A) system, comprising the following steps: introducing UE specific handoff parameters aiming to a certain characteristic which is specific to UE and influences the handoff performance in mobile robustness optimization, and maintaining different handoff parameters for the UE with different characteristics by each base station; except for common handoff parameters, also informing a plurality of UE specific handoff parameters to the UE by eNB after accessing a certain UE to eNB; and selecting a proper UE specific handoff parameter for use by the UE according to self characteristics during handoff. The invention considers the UE characteristics influencing the handoff effect into the mobile robustness optimization by introducing the UE specific handoff parameters in the mobile robustness optimization, thereby greatly increasing the success probability of handoff and preferably realizing the mobile robustness optimization.

Description

technical field [0001] The present invention relates to the field of mobile communications, in particular to an optimization method for MRO (Mobility Robustness Optimization) in a long-term evolution broadband LTE-A system. Background technique [0002] In 2G / 3G systems, handover (HO: Handoff) parameters are manually set by network operators, which is an extremely time-consuming process, and the dynamics of this manual configuration of handoff parameters is poor. When the network environment Changes can easily lead to UE (User Equipment) handover failure or radio link failure (RLF: Radio Link Failure). [0003] In order to solve the above problems, 3GPP TR 36.902 introduces the function of Mobility Robustness Optimization (MRO: Mobility Robustness Optimization) in LTE and LTE Advanced systems. In mobile robustness optimization, every time a radio link failure (RLF) or handover failure occurs, the UE will send a radio link failure report (RLF Report) to the corresponding eNB...

Claims

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Application Information

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IPC IPC(8): H04W24/02H04W36/26H04W36/32
Inventor 洪佩琳铁晓磊薛开平张浩
Owner UNIV OF SCI & TECH OF CHINA
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