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1. 发明授权

US10594459B2 Method and apparatus for extracting large-scale features in propagation channels via non-orthogonal pilot signal designs 有权
公开(公告)号：US10594459B2
公开(公告)日：2020-03-17
申请号：US15961571
申请日：2018-04-24
申请人： Chenwei Wang , Ozgun Bursalioglu Yilmaz , Haralabos Papadopoulos
发明人： Chenwei Wang , Ozgun Bursalioglu Yilmaz , Haralabos Papadopoulos
IPC分类号： H04W4/00 , H04L5/00 , H04B7/0456 , H04L25/02 , H04B7/06 , H04B7/0452 , H04W88/08
摘要： A method and apparatus for data transmission in a cellular system are disclosed herein In one embodiment, the method comprises receiving transmissions of uplink pilot signals made in each slot, by a number of UEs, over the radio resource elements in slots that are allocated for uplink pilot transmission, wherein the number of UEs in the vicinity of at least one base station exceeds the number of radio resource elements that have been allocated for uplink pilot transmission in the slot; estimating large-scale radio-channel propagation strengths of a plurality of nearby UEs to a base station; estimating radio-propagation channel coefficients between each base-station antenna and each UE, in a subset of UEs in the plurality of nearby UEs that have large-scale radio-channel propagation strengths to the base station that are stronger than those UEs in the plurality of nearby UEs not part of the subset; and transmitting to in-cell UEs via multi-user beamforming, including suppressing interference to one or more nearby out-of-cell UEs that are part of the plurality of nearby UEs.

2. 发明申请

US20180351708A1 METHOD AND APPARATUS FOR EXTRACTING LARGE-SCALE FEATURES IN PROPAGATION CHANNELS VIA NON-ORTHOGONAL PILOT SIGNAL DESIGNS 审中-公开
公开(公告)号：US20180351708A1
公开(公告)日：2018-12-06
申请号：US15961571
申请日：2018-04-24
申请人： Chenwei Wang , Ozgun Bursalioglu Yilmaz , Haralabos Papadopoulos
发明人： Chenwei Wang , Ozgun Bursalioglu Yilmaz , Haralabos Papadopoulos
IPC分类号： H04L5/00 , H04B7/0456 , H04B7/06 , H04L25/02
CPC分类号： H04L5/005 , H04B7/0452 , H04B7/0456 , H04B7/0617 , H04L5/0051 , H04L5/0073 , H04L25/0204 , H04L25/021 , H04L25/0228 , H04L25/0244 , H04L25/0248 , H04L25/0256 , H04W88/085
摘要： A method and apparatus for data transmission in a cellular system are disclosed herein In one embodiment, the method comprises receiving transmissions of uplink pilot signals made in each slot, by a number of UEs, over the radio resource elements in slots that are allocated for uplink pilot transmission, wherein the number of UEs in the vicinity of at least one base station exceeds the number of radio resource elements that have been allocated for uplink pilot transmission in the slot; estimating large-scale radio-channel propagation strengths of a plurality of nearby UEs to a base station; estimating radio-propagation channel coefficients between each base-station antenna and each UE, in a subset of UEs in the plurality of nearby UEs that have large-scale radio-channel propagation strengths to the base station that are stronger than those UEs in the plurality of nearby UEs not part of the subset; and transmitting to in-cell UEs via multi-user beamforming, including suppressing interference to one or more nearby out-of-cell UEs that are part of the plurality of nearby UEs.

3. 发明授权

US10299165B2 Method and apparatus for user/base-station signaling and association achieving load balancing across wireless multi-band heterogeneous networks 有权
公开(公告)号：US10299165B2
公开(公告)日：2019-05-21
申请号：US14980781
申请日：2015-12-28
申请人： Haralabos Papadopoulos , Ozgun Bursalioglu Yilmaz
发明人： Haralabos Papadopoulos , Ozgun Bursalioglu Yilmaz
IPC分类号： H04W28/08 , H04W72/04 , H04W48/00
摘要： A method and apparatus are disclosed herein for user/base station signaling and load balancing across a wireless network. In one embodiment, the method comprises broadcasting, by a first base station in the wireless network, information indicative of the load of the first base station; receiving an association request from the user terminal for association with the first base station in response to the user terminal predicting a net throughput from the first base station, based on the information indicative of the load, being greater than net throughput from a second base station to which the user terminal is currently associated; and determining whether to accept the association request while performing an association process for selectively allowing only a fraction of requests from user terminals to associated with the base station.

4. 发明授权

US09876539B2 Method and apparatus for scalable load balancing across wireless heterogeneous MIMO networks 有权
公开(公告)号：US09876539B2
公开(公告)日：2018-01-23
申请号：US14738565
申请日：2015-06-12
申请人： Haralabos Papadopoulos , Ozgun Bursalioglu Yilmaz
发明人： Haralabos Papadopoulos , Ozgun Bursalioglu Yilmaz
IPC分类号： H04B7/02 , H04B7/024 , H04W72/04 , H04B7/0413 , H04W28/08 , H04W28/22 , H04W72/12 , H04W92/12
CPC分类号： H04B7/024 , H04B7/0413 , H04W28/08 , H04W28/22 , H04W72/0406 , H04W72/0413 , H04W72/12 , H04W92/12
摘要： A method and apparatus for load balancing in a wireless network is described. In one embodiment, the method comprises receiving, by at least one of the one or more controllers, from at least one of the one or more base stations, information indicative of a rate that can be provided by the at least one base station to at least one client terminal by the at least one base station when serving a group of one or more client terminals, the at least one client terminal being associated to the at least one controller; receiving, by the at least one of the one or more controllers, from the at least one of the one or more base stations, information indicative of the transmission resources provided by the at least one base station for resource allocation among the at least one client terminal by the at least one controller; and determining, by the at least one controller, based on the information indicative of the rate and the information indicative of transmission resources, information indicative of an allocation of base station transmission resources for at least one client terminal from the at least one base station.

5. 发明申请

US20160192238A1 METHOD AND APPARATUS FOR USER/BASE-STATION SIGNALING AND ASSOCIATION ACHIEVING LOAD BALANCING ACROSS WIRELESS MULTI-BAND HETEROGENEOUS NETWORKS 审中-公开
标题翻译：用于无线多通道异构网络的用户/基站信号和协议实现负载平衡的方法和装置
公开(公告)号：US20160192238A1
公开(公告)日：2016-06-30
申请号：US14980781
申请日：2015-12-28
申请人： Haralabos Papadopoulos , Ozgun Bursalioglu Yilmaz
发明人： Haralabos Papadopoulos , Ozgun Bursalioglu Yilmaz
IPC分类号： H04W28/08 , H04W72/04
CPC分类号： H04W28/08 , H04W48/06 , H04W48/08
摘要： A method and apparatus are disclosed herein for user/base station signaling and load balancing across a wireless network. In one embodiment, the method comprises broadcasting, by a first base station in the wireless network, information indicative of the load of the first base station; receiving an association request from the user terminal for association with the first base station in response to the user terminal predicting a net throughput from the first base station, based on the information indicative of the load, being greater than net throughput from a second base station to which the user terminal is currently associated; and determining whether to accept the association request while performing an association process for selectively allowing only a fraction of requests from user terminals to associated with the base station.
摘要翻译：本文公开了一种用于跨越无线网络的用户/基站信令和负载平衡的方法和装置。在一个实施例中，该方法包括由无线网络中的第一基站广播指示第一基站的负载的信息; 响应于所述用户终端基于指示所述负载的信息来预测来自所述第一基站的净吞吐量，从所述用户终端接收与所述第一基站的关联的关联请求，所述关联请求大于来自第二基站的净吞吐量用户终端当前与之相关联; 以及在执行关联过程时确定是否接受所述关联请求，用于选择性地仅允许来自用户终端的一小部分请求与所述基站相关联。

6. 发明申请

US20160270073A1 METHOD AND APPARATUS FOR RESOURCE ALLOCATION AND FOR SCHEDULING CELLULAR AND COORDINATED MULTIPOINT TRANSMISSIONS IN HETEROGENEOUS WIRELESS NETWORKS 审中-公开
标题翻译：用于资源分配和调度在异质无线网络中的细胞和协调多点传输的方法和装置
公开(公告)号：US20160270073A1
公开(公告)日：2016-09-15
申请号：US15065117
申请日：2016-03-09
申请人： Qiaoyang Ye , Ozgun Bursalioglu Yilmaz , Haralabos Papadopoulos
发明人： Qiaoyang Ye , Ozgun Bursalioglu Yilmaz , Haralabos Papadopoulos
IPC分类号： H04W72/04 , H04B7/02 , H04B7/06
CPC分类号： H04W72/0446 , H04B7/024 , H04B7/0413 , H04W28/08 , H04W72/12
摘要： A method and apparatus is disclosed herein for resource allocation in a wireless communication system are disclosed. In one embodiment, the method comprises allocating portions of the resources available to a subset of base stations of the plurality of base stations to serve a subset of UTs from clusters of base stations with cluster sizes including at least one with two or more base stations, where each of the portions of resources are allocated to serve one UT via a user-dependent cluster of base stations; and scheduling UT transmissions over the subset of base stations and scheduling slots, wherein within each of the scheduling slots one or more user terminals are scheduled for transmission, each by its user-dependent cluster of base stations.
摘要翻译：本文公开了一种用于无线通信系统中的资源分配的方法和装置。在一个实施例中，该方法包括将可用于多个基站的子集的可用资源的部分分配给来自具有包括至少一个具有两个或更多个基站的群集大小的基站群的UT的子集，其中资源的每个部分被分配用于经由基于用户的集群的基站服务于一个UT; 以及在基站和调度时隙的子集上调度UT传输，其中在每个调度时隙内，调度一个或多个用户终端进行传输，每个由用户依赖的基站簇组成。

7. 发明授权

US10123326B2 Method and apparatus for resource allocation and for scheduling cellular and coordinated multipoint transmissions in heterogeneous wireless networks 有权
公开(公告)号：US10123326B2
公开(公告)日：2018-11-06
申请号：US15065117
申请日：2016-03-09
申请人： Qiaoyang Ye , Ozgun Bursalioglu Yilmaz , Haralabos Papadopoulos
发明人： Qiaoyang Ye , Ozgun Bursalioglu Yilmaz , Haralabos Papadopoulos
IPC分类号： H04W4/00 , H04W72/04 , H04B7/024 , H04B7/0413 , H04W28/08 , H04W72/12
摘要： A method and apparatus is disclosed herein for resource allocation in a wireless communication system are disclosed. In one embodiment, the method comprises allocating portions of the resources available to a subset of base stations of the plurality of base stations to serve a subset of UTs from clusters of base stations with cluster sizes including at least one with two or more base stations, where each of the portions of resources are allocated to serve one UT via a user-dependent cluster of base stations; and scheduling UT transmissions over the subset of base stations and scheduling slots, wherein within each of the scheduling slots one or more user terminals are scheduled for transmission, each by its user-dependent cluster of base stations.

8. 发明申请

US20150365953A1 METHOD AND APPARATUS FOR SCALABLE LOAD BALANCING ACROSS WIRELESS HETEROGENEOUS MIMO NETWORKS 有权
标题翻译：无线异构MIMO网络可扩展负载均衡的方法与装置
公开(公告)号：US20150365953A1
公开(公告)日：2015-12-17
申请号：US14738565
申请日：2015-06-12
申请人： Haralabos Papadopoulos , Ozgun Bursalioglu Yilmaz
发明人： Haralabos Papadopoulos , Ozgun Bursalioglu Yilmaz
IPC分类号： H04W72/04 , H04B7/02 , H04W72/12
CPC分类号： H04B7/024 , H04B7/0413 , H04W28/08 , H04W28/22 , H04W72/0406 , H04W72/0413 , H04W72/12 , H04W92/12
摘要： A method and apparatus for load balancing in a wireless network is described. In one embodiment, the method comprises receiving, by at least one of the one or more controllers, from at least one of the one or more base stations, information indicative of a rate that can be provided by the at least one base station to at least one client terminal by the at least one base station when serving a group of one or more client terminals, the at least one client terminal being associated to the at least one controller; receiving, by the at least one of the one or more controllers, from the at least one of the one or more base stations, information indicative of the transmission resources provided by the at least one base station for resource allocation among the at least one client terminal by the at least one controller; and determining, by the at least one controller, based on the information indicative of the rate and the information indicative of transmission resources, information indicative of an allocation of base station transmission resources for at least one client terminal from the at least one base station.
摘要翻译：描述了一种在无线网络中进行负载平衡的方法和装置。在一个实施例中，该方法包括由一个或多个控制器中的至少一个控制器从一个或多个基站中的至少一个基站接收指示可由至少一个基站提供的速率的信息当服务于一个或多个客户终端的组时，所述至少一个基站的至少一个客户终端与所述至少一个控制器相关联;所述至少一个客户终端与所述至少一个控制器相关联; 由所述一个或多个控制器中的至少一个控制器从所述一个或多个基站中的所述至少一个基站接收指示由所述至少一个基站提供的用于在所述至少一个客户端中进行资源分配的传输资源的信息终端由至少一个控制器; 以及由所述至少一个控制器基于指示所述速率的信息和指示传输资源的信息来确定指示来自所述至少一个基站的至少一个客户终端的基站传输资源的分配的信息。

9. 发明申请

US20120069824A1 METHOD FOR EFFICIENT MU-MIMO TRANSMISSION BY JOINT ASSIGNMENTS OF TRANSMISSION ARCHITECTURE, AND INTERFERENCE ALIGNMNET SCHEMES USING OPTIMIZED USER-CODE ASSIGNMENTS AND POWER-ALLOCATION 有权
标题翻译：使用优化的用户代码分配和功率分配的传输体系结构联合分配的有效MU-MIMO传输方法和干扰对齐方案
公开(公告)号：US20120069824A1
公开(公告)日：2012-03-22
申请号：US13239167
申请日：2011-09-21
申请人： Haralabos Papadopoulos , Sean A. Ramprashad , Chenwei Wang
发明人： Haralabos Papadopoulos , Sean A. Ramprashad , Chenwei Wang
IPC分类号： H04W72/04 , H04W52/04 , H04J3/00
CPC分类号： H04B7/0822 , H04B7/024 , H04B7/0413
摘要： A method, apparatus, and wireless communication system is disclosed herein for operating a BIA code structure in a system. In one embodiment, the wireless communication system comprises a plurality of receivers, wherein each receiver in the plurality having a multi-mode antenna with a single radio frequency (RF) chain that is operable in a plurality of antenna modes, and further wherein each receiver shifts between the plurality of antenna modes in a predetermined manner. The wireless communication system also includes a plurality of base stations in a cell topology to perform downlink transmissions to the plurality of receivers, each base station in the plurality of base stations having one or more transmitters having a transmit antenna and being operable to communicate with one or more of receivers in the plurality of receivers using a multi-user MIMO (MU-MIMO)-based blind interference alignment (BIA) scheme, wherein each active base station in the plurality of base stations operates an identical BIA code structure in a given transmission resource.
摘要翻译：本文公开了一种用于在系统中操作BIA代码结构的方法，装置和无线通信系统。在一个实施例中，无线通信系统包括多个接收机，其中多个接收机中的每个接收机具有多模天线，其具有可在多个天线模式中操作的单个射频（RF）链，并且其中每个接收机以预定的方式在多个天线模式之间移动。无线通信系统还包括在小区拓扑中的多个基站以对多个接收机执行下行链路传输，所述多个基站中的每个基站具有一个或多个具有发射天线的发射机，并且可操作以与一个使用基于多用户MIMO（MU-MIMO）的盲干扰对准（BIA）方案在多个接收机中使用多个接收机，其中多个基站中的每个有源基站在给定的基站中操作相同的BIA码结构传输资源。

10. 发明授权

US08688154B2 Method and apparatus for communicating with blind interference alignment using power allocation and/or transmission architecture 有权
标题翻译：用于使用功率分配和/或传输架构与盲目干扰对准进行通信的方法和装置
公开(公告)号：US08688154B2
公开(公告)日：2014-04-01
申请号：US13223762
申请日：2011-09-01
申请人： Haralabos Papadopoulos , Sean A. Ramprashad , Chenwei Wang
发明人： Haralabos Papadopoulos , Sean A. Ramprashad , Chenwei Wang
IPC分类号： H04W24/02 , H04B15/00
CPC分类号： H04B7/0452 , H04B7/024 , H04B7/0822 , H04B7/0871 , H04W52/243 , H04W52/30
摘要： A method and system are disclosed herein for power allocation and/or clustering in a wireless communication system that uses blind interference alignment. In one embodiment, the system comprises a plurality of receivers, where each receiver in the plurality has a multi-mode antenna with a single radio frequency (RF) chain that is operable in a plurality of antenna modes, and wherein each receiver shifts between the plurality of antenna modes in a predetermined manner. The system also includes a plurality of base stations to perform cluster-based transmission, each base station in the plurality of base stations having one or more transmitters having a transmit antenna and being operable to communicate with one or more of receivers in the plurality of receivers using a blind interference alignment (BIA) scheme, and wherein the plurality of base stations are grouped in different clusters at different times according to cluster patterns.
摘要翻译：本文公开了一种使用盲目干扰对准的无线通信系统中的功率分配和/或聚类的方法和系统。在一个实施例中，系统包括多个接收机，其中多个接收机中的每个接收机具有多模天线，该多模天线具有可在多个天线模式中操作的单个射频（RF）链，并且其中每个接收机在多个天线方式。该系统还包括多个基站以执行基于簇的传输，多个基站中的每个基站具有一个或多个具有发射天线的发射机，并且可操作以与多个接收机中的一个或多个接收机进行通信使用盲目干扰对准（BIA）方案，并且其中所述多个基站根据群集模式在不同时间被分组成不同的群集。

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