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公开(公告)号：US09807718B2
公开(公告)日：2017-10-31
申请号：US14784107
申请日：2013-09-25
发明人： Joakim Axmon , Dandan Hao , Peng Liu
CPC分类号： H04W56/0015 , H04L5/0048 , H04L5/0057 , H04W24/10
摘要： A carrier aggregation application method is provided of attaining time synchronization to a secondary cell for a wireless communication device usable in a cellular communication network. The method comprises, if a time reference of the secondary cell is unknown to the wireless communication device: setting a preliminary time reference of the secondary cell to equal a time reference of a primary cell of the carrier aggregation application; performing a synchronization signal based detection of the time reference of the secondary cell based on the preliminary time reference and one or more synchronization signals transmitted in the secondary cell; performing preliminary time reference based channel state measurements of the secondary cell based on the preliminary time reference and one or more reference signals transmitted in the secondary cell; setting, based on the synchronization signal based detection, a value of a channel quality indicator to either a nominal value or a value based on the preliminary time reference based channel state measurements; and transmitting a channel state information report comprising the channel quality indicator to the cellular communication network. An arrangement for a wireless communication device usable in a cellular communication network, adapted to attain time synchronization to a secondary cell of a carrier aggregation application is also disclosed. A modem comprising the arrangement and wireless communication device comprising the arrangement are also disclosed.
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公开(公告)号：US09585076B2
公开(公告)日：2017-02-28
申请号：US14763987
申请日：2013-02-06
发明人： Peng Liu , Licong Huang , Jing Liu , Robert Ma
CPC分类号： H04W36/30 , H04W36/0083
摘要： Method in a wireless device for managing handover from a source cell to a target cell. When a first difference of a first quality measurement of a signal from the target cell minus a first quality measurement of a signal from the source cell is above a first threshold for a first time period, the wireless device sends a report to the source network node and receives a message to handover to the target cell. When a second difference of a second quality measurement of a signal from the target cell minus a second quality measurement of a signal from the source cell is above a second threshold value, for a second time period, the wireless device triggers handover to the target cell. When it is not above the second threshold value, for the second time period, it cancels the handover.
摘要翻译： 用于管理从源小区到目标小区的切换的无线设备中的方法。 当来自目标小区的信号的第一质量测量的第一差值减去来自源小区的信号的第一质量测量在第一时间段内高于第一阈值时，无线设备向源网络节点发送报告 并接收到切换到目标小区的消息。 当来自目标小区的信号的第二质量测量的第二差异减去来自源小区的信号的第二质量测量高于第二阈值时，在第二时间段内，无线设备触发到目标小区的切换 。 当不高于第二阈值时，在第二时间段中，它取消切换。
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公开(公告)号：US20160073370A1
公开(公告)日：2016-03-10
申请号：US14784107
申请日：2013-09-25
发明人： Joakim Axmon , Dandan Hao , Peng Liu
CPC分类号： H04W56/0015 , H04L5/0048 , H04L5/0057 , H04W24/10
摘要： A carrier aggregation application method is provided of attaining time synchronization to a secondary cell for a wireless communication device usable in a cellular communication network. The method comprises, if a time reference of the secondary cell is unknown to the wireless communication device: setting a preliminary time reference of the secondary cell to equal a time reference of a primary cell of the carrier aggregation application; performing a synchronization signal based detection of the time reference of the secondary cell based on the preliminary time reference and one or more synchronization signals transmitted in the secondary cell; performing preliminary time reference based channel state measurements of the secondary cell based on the preliminary time reference and one or more reference signals transmitted in the secondary cell; setting, based on the synchronization signal based detection, a value of a channel quality indicator to either a nominal value or a value based on the preliminary time reference based channel state measurements; and transmitting a channel state information report comprising the channel quality indicator to the cellular communication network. An arrangement for a wireless communication device usable in a cellular communication network, adapted to attain time synchronization to a secondary cell of a carrier aggregation application is also disclosed. A modem comprising the arrangement and wireless communication device comprising the arrangement are also disclosed.
摘要翻译： 提供一种载波聚合应用方法，用于为可用于蜂窝通信网络的无线通信设备获得与辅助小区的时间同步。 所述方法包括：如果所述辅助小区的时间参考对于所述无线通信设备是未知的，则将所述辅助小区的预备时间基准设置为等于所述载波聚合应用的主小区的时间参考; 基于所述初步时间基准和在所述二次电池中发送的一个或多个同步信号，对所述二次电池的时间基准进行检测; 基于所述初步时间基准和在所述二次电池中发送的一个或多个参考信号来执行所述辅助小区的初步时间基准的信道状态测量; 基于基于同步信号的检测，基于基于初步时间基准的信道状态测量，将信道质量指示符的值设置为标称值或值; 以及向蜂窝通信网络发送包括信道质量指示符的信道状态信息报告。 还公开了一种可用于蜂窝通信网络中的适于实现与载波聚合应用的二次小区的时间同步的无线通信设备的布置。 还公开了包括该装置的调制解调器和包括该装置的无线通信装置。
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公开(公告)号：US20150373611A1
公开(公告)日：2015-12-24
申请号：US14763987
申请日：2013-02-06
发明人： Peng Liu , Licong HUANG , Jing LIU , Robert MA
IPC分类号： H04W36/30
CPC分类号： H04W36/30 , H04W36/0083
摘要： Method in a wireless device for managing handover from a source cell to a target cell. When a first difference of a first quality measurement of a signal from the target cell minus a first quality measurement of a signal from the source cell is above a first threshold for a first time period, the wireless device sends a report to the source network node and receives a message to handover to the target cell. When a second difference of a second quality measurement of a signal from the target cell minus a second quality measurement of a signal from the source cell is above a second threshold value, for a second time period, the wireless device triggers handover to the target cell. When it is not above the second threshold value, for the second time period, it cancels the handover.
摘要翻译： 用于管理从源小区到目标小区的切换的无线设备中的方法。 当来自目标小区的信号的第一质量测量的第一差值减去来自源小区的信号的第一质量测量在第一时间段内高于第一阈值时，无线设备向源网络节点发送报告 并接收到切换到目标小区的消息。 当来自目标小区的信号的第二质量测量的第二差异减去来自源小区的信号的第二质量测量高于第二阈值时，在第二时间段内，无线设备触发到目标小区的切换 。 当不高于第二阈值时，在第二时间段中，它取消切换。
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