公开(公告)号：US08538436B2

公开(公告)日：2013-09-17

申请号：US13195462

申请日：2011-08-01

申请人： Yinghui Yu ,  Weiwei Song ,  Yajun Zhao ,  Xingqing Cheng

发明人： Yinghui Yu ,  Weiwei Song ,  Yajun Zhao ,  Xingqing Cheng

IPC分类号： H04W36/00

CPC分类号： H04W36/165 ,  H04W36/0061

摘要： A method for mobility management, an apparatus and a User Equipment (UE) are disclosed. The method includes: obtaining cell set information sent by a cell set in an access network; selecting a target cell set to which a UE may hand over according to the cell set information, and sending information about selection of the target cell set to the target cell set; and receiving information about at least one target cell decided by the target cell set, and providing the information about the target cell to the UE for handover. The method for mobility management between cell sets simplifies mobility management in multi-cell communication and improves performance of the communication system.

摘要翻译： 公开了一种用于移动性管理的方法，装置和用户设备（UE）。 该方法包括：获取由接入网中设置的小区发送的小区集信息; 根据小区集信息选择UE可以切换到的目标小区集合，并将关于目标小区集合的选择的信息发送到目标小区集合; 以及接收关于由所述目标小区集决定的至少一个目标小区的信息，以及将所述目标小区的信息提供给所述UE进行切换。 小区组之间的移动性管理方法简化了多小区通信中的移动性管理，提高了通信系统的性能。

公开(公告)号：US08842616B2

公开(公告)日：2014-09-23

申请号：US13112736

申请日：2011-05-20

申请人： Xingqing Cheng ,  Lei Wan ,  Mingyu Zhou ,  Yajun Zhao ,  Xiaotao Ren

发明人： Xingqing Cheng ,  Lei Wan ,  Mingyu Zhou ,  Yajun Zhao ,  Xiaotao Ren

IPC分类号： H04W4/00 ,  H04L5/00

CPC分类号： H04L5/0053 ,  H04L5/0032 ,  H04L5/0035

摘要： A method, a network device, and a system for determining resource mapping in CoMP transmission are disclosed. The method includes: the cooperative cells that perform CoMP transmission for a UE negotiate a mapping rule used by the cooperative cells when the status of the CoMP transmission of the UE changes, where the mapping rule includes the number of and position of OFDM symbols allocated to a PDCCH domain and/or a data channel domain; and the negotiated mapping rule is notified to the UE. In this embodiment, before the downlink signals are transmitted, the mapping rule used by each cooperative cell for CoMP transmission is negotiated between the cooperative cells, and therefore, the UE can accurately receive the signal sent by multiple cooperative cells and the performance of CoMP transmission in the system is improved.

摘要翻译： 公开了一种在CoMP传输中确定资源映射的方法，网络设备和系统。 该方法包括：当UE的CoMP传输的状态改变时，执行CoMP传输的协作小区协调协作小区使用的映射规则，其中映射规则包括分配给 PDCCH域和/或数据信道域; 并且协商的映射规则被通知给UE。 在本实施例中，在发送下行链路信号之前，协作小区之间协商由协作小区进行CoMP传输所使用的映射规则，因此UE可以准确地接收由多个协作小区发送的信号和执行CoMP传输 在系统上有所改善。

公开(公告)号：US20110235603A1

公开(公告)日：2011-09-29

申请号：US13112736

申请日：2011-05-20

申请人： Xingqing Cheng ,  Lei Wan ,  Mingyu Zhou ,  Yajun Zhao ,  Xiaotao Ren

发明人： Xingqing Cheng ,  Lei Wan ,  Mingyu Zhou ,  Yajun Zhao ,  Xiaotao Ren

IPC分类号： H04W72/04

CPC分类号： H04L5/0053 ,  H04L5/0032 ,  H04L5/0035

摘要： A method, a network device, and a system for determining resource mapping in CoMP transmission are disclosed. The method includes: the cooperative cells that perform CoMP transmission for a UE negotiate a mapping rule used by the cooperative cells when the status of the CoMP transmission of the UE changes, where the mapping rule includes the number of and position of OFDM symbols allocated to a PDCCH domain and/or a data channel domain; and the negotiated mapping rule is notified to the UE. In this embodiment, before the downlink signals are transmitted, the mapping rule used by each cooperative cell for CoMP transmission is negotiated between the cooperative cells, and therefore, the UE can accurately receive the signal sent by multiple cooperative cells and the performance of CoMP transmission in the system is improved.

摘要翻译： 公开了一种在CoMP传输中确定资源映射的方法，网络设备和系统。 该方法包括：当UE的CoMP传输的状态改变时，执行CoMP传输的协作小区协调协作小区使用的映射规则，其中映射规则包括分配给 PDCCH域和/或数据信道域; 并且协商的映射规则被通知给UE。 在本实施例中，在发送下行链路信号之前，协作小区之间协商由协作小区进行CoMP传输所使用的映射规则，因此UE可以准确地接收由多个协作小区发送的信号和执行CoMP传输 在系统上有所改善。

公开(公告)号：US08879484B2

公开(公告)日：2014-11-04

申请号：US13340337

申请日：2011-12-29

申请人： Lei Wan ,  Qiang Li ,  Yajun Zhao ,  Xingqing Cheng

发明人： Lei Wan ,  Qiang Li ,  Yajun Zhao ,  Xingqing Cheng

IPC分类号： H04W4/00 ,  H04J11/00 ,  H04L5/00 ,  H04B7/02

CPC分类号： H04L5/0048 ,  H04B7/024 ,  H04J11/0056 ,  H04L5/0035

摘要： Embodiments of the present invention disclose a method, an apparatus, and a system for processing a reference signal. The present invention relates to the field of radio communications technologies, and solves a technical problem that it is impossible to meet a requirement for measurement of downlink channels of multiple cells in a coordinated multipoint transmission/reception (CoMP) scenario in the prior art. According to the embodiments of the present invention, a reference signal is sent in a specified pilot position to a target user equipment (UE) where data puncturing is performed, in positions corresponding to the specified pilot position, with respect to data symbols simultaneously sent by an evolved NodeB (eNB) to which another cell in a CoMP set of the UE belongs, and the specified pilot position is orthogonally separated from a reference signal pilot position of the another cell in the CoMP set.

摘要翻译： 本发明的实施例公开了一种用于处理参考信号的方法，装置和系统。 本发明涉及无线电通信技术领域，并且解决了现有技术中协调多点发送/接收（CoMP）场景中不可能满足测量多个小区的下行链路信道的要求的技术问题。 根据本发明的实施例，在与指定的导频位置对应的位置中，相对于同时发送的数据符号，将指定导频位置的参考信号发送到执行数据删截的目标用户设备（UE） UE的CoMP集合中的另一小区所属的演进节点B（eNB），并且指定的导频位置与CoMP集合中的另一小区的参考信号导频位置正交地分离。

公开(公告)号：US08260211B2

公开(公告)日：2012-09-04

申请号：US13106054

申请日：2011-05-12

申请人： Lei Wan ,  Xingqing Cheng ,  Mingyu Zhou ,  Yajun Zhao

发明人： Lei Wan ,  Xingqing Cheng ,  Mingyu Zhou ,  Yajun Zhao

IPC分类号： H04Q7/20

CPC分类号： H04W72/044 ,  H04J11/0023 ,  H04L5/0007 ,  H04L5/0035 ,  H04L5/0048 ,  H04L25/0204 ,  H04L25/0224 ,  H04W72/0433

摘要： A method, an apparatus and a system for estimating channels are disclosed. A method for estimating channels includes: receiving downlink signals inclusive of reference signals from two or more Access Points (APs), where the relative frequency shift between reference signals sent by different APs is zero; and performing channel estimation according to the reference signals. Another method for estimating channels includes: receiving downlink signals inclusive of reference signals from two or more APs, where for a first AP and a second AP among the two or more APs, a specific time-frequency lattice in the downlink signals sent by the first AP includes no data signal, and the specific time-frequency lattice corresponds to a time-frequency lattice utilized by the second AP to send a reference signal; and performing channel estimation according to the reference signals. The technical solution disclosed herein eliminates the interference between the reference signal and the data signal, enables the UE to estimate the channel value between the UE and the cooperative APs accurately, and improves the UE performance.

摘要翻译： 公开了一种用于估计信道的方法，装置和系统。 用于估计信道的方法包括：从两个或多个接入点（AP）接收包括参考信号的下行链路信号，其中由不同AP发送的参考信号之间的相对频移为零; 并根据参考信号进行信道估计。 用于估计信道的另一方法包括：从两个或多个AP接收包括参考信号的下行链路信号，其中对于两个或更多个AP中的第一AP和第二AP，下行链路信号中的特定时间 - 频率格点由第一 AP不包括数据信号，并且特定时间频率格对应于由第二AP利用来发送参考信号的时间 - 频率格点; 并根据参考信号进行信道估计。 本文公开的技术方案消除了参考信号与数据信号之间的干扰，使UE能够准确地估计UE与协作AP之间的信道值，提高UE的性能。

公开(公告)号：US09673883B2

公开(公告)日：2017-06-06

申请号：US13458273

申请日：2012-04-27

申请人： Yajun Zhao ,  Jianguo Wang ,  Xingqing Cheng ,  Zuomin Wu ,  Yan Cheng

发明人： Yajun Zhao ,  Jianguo Wang ,  Xingqing Cheng ,  Zuomin Wu ,  Yan Cheng

IPC分类号： H04B7/06 ,  H04W72/12 ,  H04W24/10 ,  H04W52/24 ,  H04W72/04

CPC分类号： H04B7/0626 ,  H04B7/024 ,  H04B7/0691 ,  H04L5/0023 ,  H04W24/10 ,  H04W52/242 ,  H04W72/0413 ,  H04W72/042 ,  H04W72/048 ,  H04W72/1226

摘要： A method and an apparatus for implementing channel measurement are disclosed in the present invention. The method includes: determining an antenna port subset, which is required to be measured, for a UE according to current state information of the user equipment UE; and informing the UE to perform channel measurement for the subset of antenna ports that is required to be measured and feed back channel state information. Through the present invention, when the state information of the UE meets a certain condition, the UE measures only the reference signals of a part of antenna ports, and feeds back channel state information for this part of antenna ports. Therefore, the overhead generated by the feedback of the UE to the channel state information is reduced.

公开(公告)号：US08483619B2

公开(公告)日：2013-07-09

申请号：US13454804

申请日：2012-04-24

申请人： Lei Wan ,  Xingqing Cheng ,  Mingyu Zhou ,  Yajun Zhao

发明人： Lei Wan ,  Xingqing Cheng ,  Mingyu Zhou ,  Yajun Zhao

IPC分类号： H04Q7/20

CPC分类号： H04W72/044 ,  H04J11/0023 ,  H04L5/0007 ,  H04L5/0035 ,  H04L5/0048 ,  H04L25/0204 ,  H04L25/0224 ,  H04W72/0433

摘要： A method, an apparatus and a system for estimating channels are disclosed. A method for estimating channels includes: receiving, by a User Equipment (UE), downlink signals sent by two or more Access Points (APs), wherein no common reference signal is comprised in any data channel symbol domain except a preset symbol domain in the downlink signals; and performing, by the UE, channel estimation according to the downlink signals. The technical solution disclosed herein eliminates the interference between the reference signal and the data signal, enables the UE to estimate the channel value between the UE and the cooperative APs accurately, and improves the UE performance.

摘要翻译： 公开了一种用于估计信道的方法，装置和系统。 一种用于估计信道的方法包括：由用户设备（UE）接收由两个或多个接入点（AP）发送的下行链路信号，其中除了所述接入点中的预设符号域之外，在任何数据信道符号域中不包括公共参考信号 下行信号; 以及由所述UE执行根据所述下行链路信号的信道估计。 本文公开的技术方案消除了参考信号与数据信号之间的干扰，使UE能够准确地估计UE与协作AP之间的信道值，提高UE的性能。

公开(公告)号：US20110292906A1

公开(公告)日：2011-12-01

申请号：US13206965

申请日：2011-08-10

申请人： Xiaotao REN ,  Bingyu Qu ,  Lei Wan ,  Xingqing Cheng

发明人： Xiaotao REN ,  Bingyu Qu ,  Lei Wan ,  Xingqing Cheng

IPC分类号： H04W72/04 ,  H04B1/713 ,  H04L12/66

CPC分类号： H04B7/024 ,  H04L5/0007 ,  H04L5/0035 ,  H04L5/0053 ,  H04W72/04

摘要： A method, an apparatus, and a system for Coordinated Multi-Point (CoMP) transmission are provided, which can effectively improve the transmission reliability over the control channel and flexibility of the application. The method includes: allocating different resources to a control channel carrying coordination information and a data channel, and performing CoMP transmission over the control channel and the data channel by using the allocated different resources. The technical solutions provided in the present invention are applicable to an Orthogonal Frequency Division Multiplexing (OFDM) system, a Code Division Multiple Access (CDMA) system, a Time Division Multiple Access (TDMA) system, or other mobile communication systems.

摘要翻译： 提供了一种用于协调多点（CoMP）传输的方法，装置和系统，可以有效提高控制信道的传输可靠性和应用的灵活性。 该方法包括：向携带协调信息和数据信道的控制信道分配不同资源，并通过使用分配的不同资源在控制信道和数据信道上执行CoMP传输。 本发明提供的技术方案适用于正交频分复用（OFDM）系统，码分多址（CDMA）系统，时分多址（TDMA）系统或其他移动通信系统。

公开(公告)号：US20110268077A1

公开(公告)日：2011-11-03

申请号：US13180221

申请日：2011-07-11

申请人： Lei WAN ,  Yajuii Zhao ,  Xingqing Cheng ,  Xiaotao Ren

发明人： Lei WAN ,  Yajuii Zhao ,  Xingqing Cheng ,  Xiaotao Ren

IPC分类号： H04W72/04

CPC分类号： H04W72/042 ,  H04B7/024 ,  H04J11/0053

摘要： A downlink transmission method in a Coordinated Multi-Point (COMP) transmission system, a network device, and a wireless system are disclosed. The method includes: determining a downlink physical resource and a downlink mapping rule corresponding to a physical downlink channel and/or a reference signal negotiated by cooperating cells; and mapping the physical downlink channel and/or the reference signal to the downlink physical resource according to the downlink mapping rule, and sending the physical downlink channel and/or the reference signal to a User Equipment (UE). According to the method, effective coverage can be improved and the problem of mutual interference between cells can be prevented.

摘要翻译： 公开了协调多点（COMP）传输系统，网络设备和无线系统中的下行链路传输方法。 该方法包括：确定对应于物理下行链路信道的下行链路物理资源和下行链路映射规则和/或协作小区协商的参考信号; 以及根据下行链路映射规则将物理下行链路信道和/或参考信号映射到下行链路物理资源，并将物理下行链路信道和/或参考信号发送到用户设备（UE）。 根据该方法，能够提高有效的覆盖率，能够防止小区间的相互干扰的问题。