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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：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：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：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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6.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：US08934467B2
公开(公告)日：2015-01-13
申请号：US13990995
申请日：2011-12-02
申请人： Fangli Xu , Yali Zhao , Jing Liang
发明人： Fangli Xu , Yali Zhao , Jing Liang
CPC分类号： H04W74/0833 , H04W36/0077 , H04W74/006
摘要： The invention discloses a random access method and apparatus so as to perform random access for a User Equipment (UE) with a plurality of aggregated cells in a carrier aggregation-enabled LTE-A system. The method includes: determining a secondary cell configured for a UE and obtaining random access related parameter preset for the secondary cell; and sending the random access related parameter to the UE to instruct the UE to initiate random access procedure over the secondary cell corresponding to the random access related parameter. The inventive method achieves the purpose of enabling the UE to be synchronized with the network side by performing random access over a specified cell, having the UE maintain uplink synchronization with the network side in the configured secondary cell and ensuring the overall performance of the system.
摘要翻译： 本发明公开了一种随机接入方法和装置，以便在携带载波聚合的LTE-A系统中对具有多个聚合小区的用户设备（UE）执行随机接入。 该方法包括：确定为UE配置的二级小区，并获得为二级小区预设的随机接入相关参数; 并向所述UE发送所述随机接入相关参数，以指示所述UE针对与所述随机接入相关参数相对应的所述辅助小区发起随机接入过程。 本发明的方法实现了使UE能够通过在指定小区上执行随机接入来使得UE能够与配置的二级小区中的网络侧保持上行同步并确保系统的整体性能的目的。
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公开(公告)号：US20140307593A1
公开(公告)日：2014-10-16
申请号：US14362923
申请日：2012-07-04
CPC分类号： H04L5/14 , H04B7/2643 , H04L5/001 , H04L5/0073 , H04L5/1469 , H04W72/02 , H04W74/085
摘要： Disclosed are a method and device for data transmission, for improving a data transmission processing solution when a plurality of aggregated cells of user equipment have different TDD UL/DL configurations. The method includes: when the time division duplex up/downlink configurations of a plurality of aggregated cells of user equipment (UE) and only bidirectional data transmission is allowed in an up/downlink collision subframe, the UE determining the allowed data transmission direction of the up/downlink collision subframe, wherein in the time division duplex up/downlink configurations of the plurality of aggregated cells of UE, the data transmission directions of the same up/downlink collision subframe are different; the UE respectively determining available subframes for use in the uplink data transmission direction and available subframes for use in the downlink data transmission direction in each aggregated cell thereof, wherein in the available subframes counted in a data transmission direction opposite to the allowed data transmission direction, the up/downlink collision subframe is not included therein; and the UE performing data transmission in the available subframes.
摘要翻译： 公开了一种用于数据传输的方法和装置，用于当用户设备的多个聚合小区具有不同的TDD UL / DL配置时改进数据传输处理解决方案。 该方法包括：当在上行/下行冲突子帧中允许用户设备（UE）的多个聚合小区的时分双工向上/下行配置，并且仅允许双向数据传输时，UE确定允许的数据传输方向 上行/下行冲突子帧，其中在UE的多个聚合小区的时分双工上行/下行配置中，相同上/下行冲突子帧的数据传输方向不同; UE分别确定在每个聚合小区中在上行链路数据传输方向上使用的可用子帧和用于下行链路数据传输方向的可用子帧，其中在与允许的数据传输方向相反的数据传输方向中计数的可用子帧中， 上下行冲突子帧不包括在其中; 并且UE在可用子帧中执行数据传输。
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公开(公告)号：US20120213151A1
公开(公告)日：2012-08-23
申请号：US13390514
申请日：2010-08-12
IPC分类号： H04W74/00
CPC分类号： H04W74/006 , H04W74/0833
摘要： A method, a system and a device for sending a random access preamble are provided. The method includes: a base station determines an uplink component carrier to be utilized by a terminal for sending a random access preamble, and sends identification information of the uplink component carrier to the terminal (30); and the terminal selects a component carrier corresponding to the uplink component carrier identification from multiple uplink component carriers which are supported by the terminal, and sends a random access preamble to the base station utilizing the component carrier (31). With the invention, a terminal in a Long Term Evolution Advanced (LTE-A) system can select a component carrier for sending a random access preamble based on indication of a base station.
摘要翻译： 提供了发送随机接入前同步码的方法，系统和装置。 该方法包括：基站确定终端用于发送随机接入前导码的上行链路分量载波，并向终端（30）发送上行链路分量载波的识别信息; 并且终端从由终端支持的多个上行链路分量载波中选择与上行链路分量载波标识对应的分量载波，并且利用分量载波（31）向基站发送随机接入前导码。 利用本发明，长期演进高级（LTE-A）系统中的终端可以基于基站的指示来选择用于发送随机接入前导码的分量载波。
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10.发明授权Method and device for reporting configurable maximum transmission power of UE carrier 有权报告UE载波可配置最大传输功率的方法和设备公开(公告)号：US09521626B2
公开(公告)日：2016-12-13
申请号：US14002116
申请日：2011-11-04
CPC分类号： H04W52/04 , H04W24/10 , H04W52/365 , H04W52/367
摘要： Disclosed are a method and device for reporting, in a carrier aggregation scenario, the configurable maximum transmission power of a UE carrier. Application of the technical solution as put forth in embodiments of the present invention enables a base station to accurately ascertain the A-MPR/MPR of a UE in a situation in which various resources are being allocated by including the configurable maximum transmission power of a UE carrier in a PHR MA CCE, and thereby more accurately perform UE scheduling
摘要翻译： 公开了一种用于在载波聚合场景中报告UE载波的可配置的最大发射功率的方法和装置。 在本发明的实施例中提出的技术方案的应用使得基站能够在通过包括UE的可配置的最大发送功率来分配各种资源的情况下准确地确定UE的A-MPR / MPR 载波在PHR MA CCE中，从而更准确地执行UE调度
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