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公开(公告)号：US09883534B2
公开(公告)日：2018-01-30
申请号：US14008482
申请日：2012-02-17
申请人： Li Chen , Fangli Xu , Yali Zhao , Jiamin Liu
发明人： Li Chen , Fangli Xu , Yali Zhao , Jiamin Liu
CPC分类号： H04W74/0833 , H04W56/0045
摘要： Disclosed are a random access method and apparatus based on multiple uplink timing advances. The method includes: when acquiring that a user equipment has multiple uplink timing advances, initiating, by a network side, for the user equipment a random access on a designated carrier of a secondary cell. According to the examples, random access in the SCell can be realized in scenarios that multi-TA is maintained.
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2.发明申请公开(公告)号：US20140044074A1
公开(公告)日：2014-02-13
申请号：US14008482
申请日：2012-02-17
申请人： Li Chen , Fangli Xu , Jiamin Liu
发明人： Li Chen , Fangli Xu , Jiamin Liu
IPC分类号： H04W74/08
CPC分类号： H04W74/0833 , H04W56/0045
摘要： Disclosed are a random access method and apparatus based on multiple uplink timing advances. The method includes: when acquiring that a user equipment has multiple uplink timing advances, initiating, by a network side, for the user equipment a random access on a designated carrier of a secondary cell. According to the examples, random access in the SCell can be realized in scenarios that multi-TA is maintained.
摘要翻译： 公开了一种基于多个上行链路定时进展的随机接入方法和装置。 该方法包括：当获取用户设备具有多个上行链路定时提前时，由网络侧为所述用户设备发起在二次小区的指定载波上的随机接入。 根据这些示例，可以在保持多TA的情况下实现SCell中的随机访问。
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3.发明授权公开(公告)号：US09219589B2
公开(公告)日：2015-12-22
申请号：US14008969
申请日：2012-03-16
申请人： Yali Zhao , Fangli Xu , Li Chen , Jiamin Liu
发明人： Yali Zhao , Fangli Xu , Li Chen , Jiamin Liu
CPC分类号： H04L5/0053 , H04L5/001 , H04L27/2656 , H04W56/00 , H04W56/0045 , H04W72/0453
摘要： The invention discloses an uplink transmission method and apparatus in a carrier aggregation system and relates to the field of radio communications so as to address the issue of how to perform uplink transmission in a secondary cell when a base station configures a user equipment additionally with the secondary cell. In the invention, a user equipment selects, under a preset reference carrier selection rule, one of downlink carriers corresponding to cells having already established downlink synchronization with a base station as a timing reference downlink carrier used by a secondary cell after the base station configures the user equipment additionally with the secondary cell; and the user equipment performs uplink transmission in the secondary cell according to downlink timing of the timing reference downlink carrier. With the invention, a timing reference downlink carrier used by an additionally configured secondary cell in uplink transmission can be determined and uplink transmission can be further preformed over the timing reference downlink carrier.
摘要翻译： 本发明公开了一种载波聚合系统中的上行链路传输方法和装置，涉及无线电通信领域，以便在基站另外配备辅助小区的情况下解决如何在二次小区中执行上行链路传输的问题 细胞。 在本发明中，用户设备在预设参考载波选择规则下，选择对应于已经建立与基站的下行链路同步的小区的下行链路载波之一作为辅助小区使用的定时参考下行链路载波，在基站配置之后 用户设备另外与二次电池; 并且用户设备根据定时参考下行链路载波的下行链路定时在二次小区中执行上行链路传输。 利用本发明，可以确定在上行链路传输中由附加配置的二级小区使用的定时参考下行链路载波，并且可以在定时参考下行链路载波上进一步执行上行链路传输。
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公开(公告)号：US09603075B2
公开(公告)日：2017-03-21
申请号：US13390105
申请日：2010-09-15
申请人： Yi Zhao , Jing Liang , Jiamin Liu , Fangli Xu
发明人： Yi Zhao , Jing Liang , Jiamin Liu , Fangli Xu
CPC分类号： H04W36/28 , H04L5/001 , H04L5/0053 , H04L5/0096 , H04L5/0098 , H04W72/02
摘要： The present invention provides a method for reconfiguring an aggregated cell, which includes that: a network side device judges whether the aggregated cell of a user equipment (UE) needs to be changed in the cell set in which the carriers can be aggregated; when the judgment result is that the change is needed, the network side device transmits a radio resource control (RRC) connection reconfiguration message to the UE, and the RRC connection reconfiguration message carries the change information of the aggregated cell of the UE; the UE receives the RRC connection reconfiguration message, and reconfigures the aggregated cell according to the RRC connection reconfiguration message. In the present invention, for the LTE-A system, when the aggregated cell of UE which supports the carrier aggregation changes within the same cell set in which the carriers can be aggregated, the aggregated cell of the UE can be reconfigured; and the same access stratum (AS) key is used to perform the security processing procedure for the data, which enables the uninterrupted transmission for the data.
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公开(公告)号：US09838990B2
公开(公告)日：2017-12-05
申请号：US13504922
申请日：2010-10-29
申请人： Fangli Xu , Yali Zhao , Jiamin Liu , Yi Zhao
发明人： Fangli Xu , Yali Zhao , Jiamin Liu , Yi Zhao
CPC分类号： H04W56/0045
摘要： A method, an apparatus and a system for uplink synchronization are disclosed by the embodiment of the invention. The method includes the following steps: a network equipment configures multi-carrier operation mode for a user equipment and obtains the timing advance TA group message corresponding to each of component carrier CC of the user equipment; the network equipment maintains the TA timer of each TA group according to the TA group information to be uplink synchronized with the user equipment. The embodiment of the invention provides the establishment and maintenance mechanism for uplink synchronization in the case that the timing advance of each component carrier CC is different in the multi-carrier system.
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公开(公告)号：US20120218988A1
公开(公告)日：2012-08-30
申请号：US13504922
申请日：2010-10-29
申请人： Fangli Xu , Yali Zhao , Jiamin Liu , Yi Zhao
发明人： Fangli Xu , Yali Zhao , Jiamin Liu , Yi Zhao
IPC分类号： H04W56/00
CPC分类号： H04W56/0045
摘要： A method, an apparatus and a system for uplink synchronization are disclosed by the embodiment of the invention. The method includes the following steps: a network equipment configures multi-carrier operation mode for a user equipment and obtains the timing advance TA group message corresponding to each of component carrier CC of the user equipment; the network equipment maintains the TA timer of each TA group according to the TA group information to be uplink synchronized with the user equipment. The embodiment of the invention provides the establishment and maintenance mechanism for uplink synchronization in the case that the timing advance of each component carrier CC is different in the multi-carrier system.
摘要翻译： 本发明的实施例公开了一种用于上行链路同步的方法，装置和系统。 该方法包括以下步骤：网络设备为用户设备配置多载波操作模式，并获取与用户设备的每个分量载波CC相对应的定时提前TA组消息; 网络设备根据TA组信息维护每个TA组的TA定时器，以与用户设备上行同步。 在多载波系统中每个分量载波CC的定时提前不同的情况下，本发明的实施例提供了用于上行链路同步的建立和维护机制。
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公开(公告)号：US20120142361A1
公开(公告)日：2012-06-07
申请号：US13390105
申请日：2010-09-15
申请人： Yi Zhao , Jing Liang , Jiamin Liu , Fangli Xu
发明人： Yi Zhao , Jing Liang , Jiamin Liu , Fangli Xu
IPC分类号： H04W40/00
CPC分类号： H04W36/28 , H04L5/001 , H04L5/0053 , H04L5/0096 , H04L5/0098 , H04W72/02
摘要： The present invention provides a method for reconfiguring an aggregated cell, which includes that: a network side device judges whether the aggregated cell of a user equipment (UE) needs to be changed in the cell set in which the carriers can be aggregated; when the judgment result is that the change is needed, the network side device transmits a radio resource control (RRC) connection reconfiguration message to the UE, and the RRC connection reconfiguration message carries the change information of the aggregated cell of the UE; the UE receives the RRC connection reconfiguration message, and reconfigures the aggregated cell according to the RRC connection reconfiguration message. In the present invention, for the LTE-A system, when the aggregated cell of UE which supports the carrier aggregation changes within the same cell set in which the carriers can be aggregated, the aggregated cell of the UE can be reconfigured; and the same access stratum (AS) key is used to perform the security processing procedure for the data, which enables the uninterrupted transmission for the data.
摘要翻译： 本发明提供了一种重新配置聚合小区的方法，包括：网络侧设备判断在可以聚合载波的小区集中是否需要改变用户设备（UE）的聚合小区; 当判断结果是需要改变时，网络侧设备向UE发送无线资源控制（RRC）连接重配置消息，RRC连接重配置消息携带UE的聚合小区的改变信息; UE接收RRC连接重配置消息，根据RRC连接重配置消息重新配置聚合小区。 在本发明中，对于LTE-A系统，当支持载波聚合的UE的聚合小区在可以聚合载波的相同小区集中改变时，UE的聚合小区可以被重新配置; 并且使用相同的接入层（AS）密钥来执行数据的安全处理过程，这使得数据的不间断传输成为可能。
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公开(公告)号：US20120063425A1
公开(公告)日：2012-03-15
申请号：US13320537
申请日：2010-05-11
申请人： Zhixue Wang , Guoqing Li , Yi Zhao , Jiamin Liu , Yali Zhao , Fangli Xu
发明人： Zhixue Wang , Guoqing Li , Yi Zhao , Jiamin Liu , Yali Zhao , Fangli Xu
IPC分类号： H04W56/00
CPC分类号： H04W56/0045 , H04W92/10
摘要： The present invention discloses a method for uplink synchronization control, wherein network side and a user equipment (UE) maintain a timing alignment timer (TAT) for the UE, and maintain an uplink transmission timing adjustment amount for uplink component carriers, and the method includes following steps: the network side measuring uplink component carriers of the UE, and obtaining an uplink transmission TA amount of the uplink component carriers; and before the TAT expires, the network side transmitting to the UE an adjustment command comprising information of the uplink transmission TA amount for at least one of the uplink component carriers of the UE. Also disclosed in the embodiments of the present invention are a method for uplink synchronization control at the UE side, and a base station and a UE for implementing the above methods. The solution of the present invention enables accurate adjustment of the uplink synchronization for each component carrier in a carrier aggregation mechanism.
摘要翻译： 本发明公开了一种上行链路同步控制方法，其中网络侧和用户设备（UE）维护用于UE的定时对准定时器（TAT），并维持上行链路分量载波的上行链路传输定时调整量，该方法包括 以下步骤：网络侧测量UE的上行链路分量载波，并获得上行链路分量载波的上行链路传输TA量; 并且在TAT到期之前，网络侧向UE发送包括UE的上行链路分量载波中的至少一个的上行链路传输TA的信息的调整命令。 在本发明的实施例中也公开了一种用于UE侧的上行链路同步控制的方法，以及用于实现上述方法的基站和UE。 本发明的解决方案能够准确地调整载波聚合机制中的每个分量载波的上行链路同步。
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公开(公告)号：US08897156B2
公开(公告)日：2014-11-25
申请号：US13320537
申请日：2010-05-11
申请人： Zhixue Wang , Guoqing Li , Yi Zhao , Jiamin Liu , Yali Zhao , Fangli Xu
发明人： Zhixue Wang , Guoqing Li , Yi Zhao , Jiamin Liu , Yali Zhao , Fangli Xu
CPC分类号： H04W56/0045 , H04W92/10
摘要： The present invention discloses a method for uplink synchronization control, wherein network side and a user equipment (UE) maintain a timing alignment timer (TAT) for the UE, and maintain an uplink transmission timing adjustment amount for uplink component carriers, and the method includes following steps: the network side measuring uplink component carriers of the UE, and obtaining an uplink transmission TA amount of the uplink component carriers; and before the TAT expires, the network side transmitting to the UE an adjustment command comprising information of the uplink transmission TA amount for at least one of the uplink component carriers of the UE. Also disclosed in the embodiments of the present invention are a method for uplink synchronization control at the UE side, and a base station and a UE for implementing the above methods. The solution of the present invention enables accurate adjustment of the uplink synchronization for each component carrier in a carrier aggregation mechanism.
摘要翻译： 本发明公开了一种上行链路同步控制方法，其中网络侧和用户设备（UE）维护用于UE的定时对准定时器（TAT），并维持上行链路分量载波的上行链路传输定时调整量，该方法包括 以下步骤：网络侧测量UE的上行链路分量载波，并获得上行链路分量载波的上行链路传输TA量; 并且在TAT到期之前，网络侧向UE发送包括UE的上行链路分量载波中的至少一个的上行链路传输TA的信息的调整命令。 在本发明的实施例中也公开了一种用于UE侧的上行链路同步控制的方法，以及用于实现上述方法的基站和UE。 本发明的解决方案能够准确地调整载波聚合机制中的每个分量载波的上行链路同步。
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公开(公告)号：US20140022975A1
公开(公告)日：2014-01-23
申请号：US14008993
申请日：2012-01-05
IPC分类号： H04W72/00
CPC分类号： H04W72/005 , H04W4/06 , H04W52/0212 , H04W52/0229 , H04W72/12 , H04W80/02 , Y02D70/1262
摘要： The present invention provides a method and an apparatus for transmitting downlink data, where unused MBSFN subframes are used for scheduling and transmitting downlink unicast data to specified terminal devices adopting a pre-defined transmission mode. Therefore, PDSCH transmission is implemented in MBSFN while the power consumption of terminal devices is kept at the same level as in the conventional art because there is no addition and modification to the higher layer signaling procedures.
摘要翻译： 本发明提供一种发送下行链路数据的方法和装置，其中未使用的MBSFN子帧用于调度和发送下行链路单播数据到采用预定义传输模式的指定终端设备。 因此，在MBSFN中实现PDSCH传输，而终端装置的功耗与传统技术保持在同一水平，因为没有增加和修改上层信令的过程。
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