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3. 发明公开

EP3222081A1 HO PERFORMANCE INDICATORS FOR TUNING HO PARAMETERS WHICH ARE BASED ON RADIO CHANNEL QUALITY BEFORE HO 审中-公开
标题翻译： HO在HO之前基于无线信道质量调谐HO参数的性能指标
公开(公告)号：EP3222081A1
公开(公告)日：2017-09-27
申请号：EP14799441.2
申请日：2014-11-17
申请人： Telefonaktiebolaget LM Ericsson (publ)
发明人： RUIZ AVILÉS, José María , BUENESTADO GARCÍA, Víctor , MENDO MATEO, Adriano , PEDRAZA MORENO, Salvador , TORIL GENOVÉS, Matías , REGUEIRA CAUMEL, Miguel Angel
IPC分类号： H04W36/00 , H04W24/02
CPC分类号： H04W36/0083 , H04B17/309 , H04W24/02 , H04W24/08 , H04W36/14
摘要： Known HO performance indicators comprise Retainability Rate and HO Successful Rate. The Retainability Rate is defined as the ratio between abnormal connection releases and the total number of releases, and HO Successful Rate is defined as the ratio of successful HOs and the total number of HO attempts. The application proposes two new HO performance indicators LowCqiRateWhenHo (522) and LowUISinrRateWhenHo (524). These two HO performance indicators are based on radio link conditions before a HO for the DL and UL channels respectively. The indicator LowCqiRateWhenHo is defined as the ratio of low, i.e. below a threshold (514). CQI measurement samples of users (502) just before a HO and is as a measure of DL connection quality during HO. The indicator LowUISinrRateWhen Ho is defined as the ratio of low, i.e. below a threshold (516). SINR measurement samples (506) in UL just before a HO and is as a measure of UL connection quality during HO. The inter-HO performance indicators disclosed herein have been successfully used to optimize iRAT HO parameters in a live network. The proposed indicators may be used as an input of Self-Optimizing Network Optimization Manager SON OM algorithms for tuning iRAT HO parameters and intra-HO parameters.
摘要翻译：已知的HO性能指标包括可保留率和HO成功率。可保留率定义为异常连接释放与释放总数之间的比率，并且HO成功率定义为成功HO与HO尝试总数之比。该应用提出了两个新的HO性能指标LowCqiRateWhenHo（522）和LowUISinrRateWhenHo（524）。这两个HO性能指标分别基于DL和UL信道的HO之前的无线电链路条件。指示符LowCqiRateWhenHo被定义为恰好在HO之前的用户（502）的CQI的低（即低于阈值（514））的比率并且是HO期间的DL连接质量的度量。指示符LowUISinrRate当Ho被定义为恰好在HO之前的UL中的低（即低于阈值（516））的SINR测量样本（506）的比率并且作为HO期间的UL连接质量的度量。这里公开的HO间性能指标已经成功用于优化实况网络中的iRAT HO参数。所提出的指标可以用作自优化网络优化管理器SON OM算法的输入，用于调谐iRAT HO参数和内部HO参数。

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