公开(公告)号：US09420603B2

公开(公告)日：2016-08-16

申请号：US11849646

申请日：2007-09-04

申请人： Tingfang Ji ,  Mohammad Jaber Borran ,  Alexei Gorokhov ,  Aamod Khandekar

发明人： Tingfang Ji ,  Mohammad Jaber Borran ,  Alexei Gorokhov ,  Aamod Khandekar

IPC分类号： H04W72/12

CPC分类号： H04W72/1252

摘要： System(s) and method(s) that facilitate assignment mismatch recovery are provided. A projected level of resources required to satisfy one or more communication constraints (e.g., inter-cell and intra-cell interference) is generated. The projected resources are contrasted with scheduled resources and a determination is made as to whether a mismatch between assigned and projected resources exists. A mismatch is recovered through an adaptive response that feeds back magnitudes for the communication resources which are compatible with the communication constraints.

摘要翻译： 提供了有助于分配失配恢复的系统和方法。 产生满足一个或多个通信约束（例如，小区间和小区内干扰）所需的预计资源量。 预计资源与预定的资源形成对照，并确定是否存在分配和预计资源之间的不匹配。 通过自适应响应恢复不匹配，该自适应响应反馈与通信约束兼容的通信资源的幅度。

公开(公告)号：US09210622B2

公开(公告)日：2015-12-08

申请号：US12853872

申请日：2010-08-10

申请人： Tingfang Ji ,  Wanshi Chen ,  Dexu Lin

发明人： Tingfang Ji ,  Wanshi Chen ,  Dexu Lin

IPC分类号： H04W88/04 ,  H04W16/26 ,  H04B7/155 ,  H04W36/00 ,  H04W36/08 ,  H04W72/00

CPC分类号： H04W36/0033 ,  H04W36/08 ,  H04W72/00 ,  H04W88/04

摘要： Systems and methodologies are described herein that facilitate techniques for design of relay backhaul to support mobility of relay nodes in a wireless communication system. According to various aspects herein, techniques are provided to enable and support the use of mobile relays and to facilitate handover of mobile relays between respective donor cells. More particularly, techniques are provided herein for relay backhaul control channel assignment associated with hand in or hand out of mobile relays, access/backhaul resource partitioning for mobile relays, and management of quality of service (QoS) requirements associated with a relay handover.

摘要翻译： 这里描述了促进用于设计中继回程以支持无线通信系统中的中继节点的移动性的技术的系统和方法。 根据本文的各个方面，提供了技术来实现和支持移动中继的使用并且便于各个供体小区之间的移动中继的切换。 更具体地，本文提供了用于与移动中继站的手或移出相关联的中继回程控制信道分配的技术，用于移动中继的接入/回程资源划分以及与中继切换相关联的服务质量（QoS）要求的管理。

公开(公告)号：US09209956B2

公开(公告)日：2015-12-08

申请号：US11260924

申请日：2005-10-27

申请人： Alexei Gorokhov ,  Tingfang Ji

发明人： Alexei Gorokhov ,  Tingfang Ji

IPC分类号： H04J1/00 ,  H04L5/00 ,  H04L5/14 ,  H04L1/00 ,  H04L1/18 ,  H04L25/03

CPC分类号： H04L5/006 ,  H04L1/0002 ,  H04L1/0009 ,  H04L1/0026 ,  H04L1/1812 ,  H04L5/0007 ,  H04L5/0044 ,  H04L5/0048 ,  H04L5/0057 ,  H04L5/0064 ,  H04L5/1438 ,  H04L25/0398

摘要： Systems and methods of scheduling sub-carriers in an OFDMA system in which a scheduler takes into account channel conditions experienced by the communication devices to optimize channel conditions. The scheduler can partition a set of sub-carriers spanning an operating bandwidth into a plurality of segments. The segments can include a plurality of global segments that each includes a distinct non-contiguous subset of the sub-carriers spanning substantially the entire operating bandwidth. One or more of the global segments can be further partitioned into a plurality of local segments that each has a bandwidth that is less than a channel coherence bandwidth. The scheduler determines channel characteristics experienced by each communication device via reporting or channel estimation, and allocates one or more segments to communication links for each device according to the channel characteristics.

摘要翻译： 在OFDMA系统中调度子载波的系统和方法，其中调度器考虑通信设备经历的信道条件以优化信道状况。 调度器可以将跨越工作带宽的一组子载波划分成多个段。 这些段可以包括多个全局段，每个全局段包括基本上跨整个工作带宽的子载波的不同的非连续子集。 一个或多个全局段可被进一步分割成多个本地段，每个本地段具有小于信道相干带宽的带宽。 调度器通过报告或信道估计来确定每个通信设备经历的信道特征，并根据信道特性为每个设备的通信链路分配一个或多个分段。

公开(公告)号：US09078270B2

公开(公告)日：2015-07-07

申请号：US12483125

申请日：2009-06-11

申请人： Tingfang Ji ,  Kambiz Azarian Yazdi ,  Dexu Lin ,  Anastasios Stamoulis ,  Arnab Chakrabarti

发明人： Tingfang Ji ,  Kambiz Azarian Yazdi ,  Dexu Lin ,  Anastasios Stamoulis ,  Arnab Chakrabarti

IPC分类号： H04M11/00 ,  H04W72/08 ,  H04W88/04 ,  H04W84/04 ,  H04W72/04

CPC分类号： H04W72/082 ,  H04B7/15542 ,  H04W72/042 ,  H04W84/047 ,  H04W88/04

摘要： Systems and methodologies are described that facilitate providing opportunistic relay node communication based on scheduling of other communications in a wireless network. In particular, a relay node can maintain a backhaul link with an access point and an access link with a mobile device to facilitate communicating information therebetween. Time slots during which the backhaul link is active can be determined and avoided during scheduling access link communications with the mobile device. Furthermore, resource assignments from the access point to the mobile device can be monitored and decoded such that time slots associated therewith can also be determined and avoided. Thus, the relay node can communicate with mobile devices in time slots where the backhaul link is inactive and/or the mobile devices are not occupied communicating directly with the access point.

摘要翻译： 描述了系统和方法，其便于基于无线网络中的其他通信的调度提供机会性中继节点通信。 特别地，中继节点可以利用移动设备来维护与接入点和接入链路的回程链路，以促进其间的通信。 在调度与移动设备的接入链路通信期间，可以确定和避免回程链路处于活动状态的时隙。 此外，可以监视和解码从接入点到移动设备的资源分配，使得与其相关联的时隙也可以被确定和避免。 因此，中继节点可以在回程链路不活动的时隙和/或移动设备不占用与接入点直接通信的时隙中与移动设备进行通信。

公开(公告)号：US09054842B2

公开(公告)日：2015-06-09

申请号：US13372078

申请日：2012-02-13

申请人： Kapil Bhattad ,  Wanshi Chen ,  Peter Gaal ,  Stefan Geirhofer ,  Tingfang Ji ,  Juan Montojo

发明人： Kapil Bhattad ,  Wanshi Chen ,  Peter Gaal ,  Stefan Geirhofer ,  Tingfang Ji ,  Juan Montojo

IPC分类号： G01R31/08 ,  H04L5/00 ,  H04L25/02 ,  H04L25/03 ,  H04W48/08 ,  H04W88/08

CPC分类号： H04L5/005 ,  H04L5/0023 ,  H04L5/0032 ,  H04L5/0051 ,  H04L5/0057 ,  H04L25/0204 ,  H04L25/0224 ,  H04L25/03866 ,  H04L25/0391 ,  H04W48/08 ,  H04W88/085

摘要： One aspect of the present disclosure provides various configurations of the macro cell and remote radio heads to allow legacy UEs to function, including mapping CRS ports to physical antenna, configuring CSI-RS transmissions and assisting the new UE in identifying remote radio heads.

摘要翻译： 本公开的一个方面提供了宏小区和远程无线电头的各种配置，以允许传统UE工作，包括将CRS端口映射到物理天线，配置CSI-RS传输并协助新UE识别远程无线电头。

公开(公告)号：US08886205B2

公开(公告)日：2014-11-11

申请号：US12712755

申请日：2010-02-25

申请人： Peter Gaal ,  Ravi Palanki ,  Tingfang Ji

发明人： Peter Gaal ,  Ravi Palanki ,  Tingfang Ji

IPC分类号： H04W72/00 ,  H04W56/00

CPC分类号： H04W56/0045 ,  H04W56/0005

摘要： Techniques for adjusting transmit timing of base stations and user equipments (UEs) in a wireless network are described. In one operating scenario, a femto base station communicates with a femto UE, and a macro base station communicates with a macro UE located within the coverage of the femto base station. In an aspect, the transmit timing of the femto base station may be delayed relative to the transmit timing of the macro base station, e.g., to time align downlink signals from the femto and macro base stations at the femto and macro UEs. In another aspect, the transmit timing of the femto UE may be advanced relative to the transmit timing of femto base station by an amount larger than twice the propagation delay between the femto UE and the femto base station, e.g., to time align uplink signals from the femto and macro UEs at the femto base station.

摘要翻译： 描述了用于调整无线网络中的基站和用户设备（UE）的发送定时的技术。 在一个操作场景中，毫微微基站与毫微微UE通信，并且宏基站与位于毫微微基站的覆盖范围内的宏UE进行通信。 在一方面，毫微微基站的发送定时可以相对于宏基站的发送定时被延迟，例如，在毫微微和宏UE处对来自毫微微基站和宏基站的下行链路信号进行时间调整。 在另一方面，毫微微UE的发送定时可以相对于毫微微基站的发送定时超过毫微微UE与毫微微基站之间的传播延迟的两倍的量进步，例如，将来自 毫微微基站处的毫微微和宏UE。

公开(公告)号：US08774119B2

公开(公告)日：2014-07-08

申请号：US13572634

申请日：2012-08-11

申请人： Arnab Chakrabarti ,  Anastasios Stamoulis ,  Dexu Lin ,  Kambiz Azarian Yazdi ,  Tingfang Ji

发明人： Arnab Chakrabarti ,  Anastasios Stamoulis ,  Dexu Lin ,  Kambiz Azarian Yazdi ,  Tingfang Ji

IPC分类号： H04W28/16 ,  H04W16/14 ,  H04W72/00 ,  H04W72/12 ,  H04L29/08

CPC分类号： H04W16/14 ,  H04L67/1082 ,  H04W16/06 ,  H04W72/00 ,  H04W72/12

摘要： Providing for fair resource sharing among wireless nodes in a wireless communication environment is described herein. By way of example, fairness can comprise establishing a set of resource sharing credits for wireless nodes. By expending credits, a node can borrow a resource of another node, to enable or enhance operation of the borrowing node. Credits for the borrowing node are decreased based on consumption of a shared resource, or credits for the lending node are increased based on such consumption, or both. Once an amount of credits expires, a node can be restricted from borrowing further resources until enough resources are lent to build up a suitable amount of credits. Accordingly, fairness can comprise correlating shared resource consumption with shared resource provisioning, to encourage participation in cooperative wireless communications.

摘要翻译： 本文描述了在无线通信环境中的无线节点之间提供公平的资源共享。 作为示例，公平性可以包括为无线节点建立一组资源共享信用。 通过消耗积分，节点可以借用另一个节点的资源，以启用或增强借用节点的操作。 基于共享资源的消耗，借用节点的贷方减少，或者基于这样的消费增加贷款节点的贷款，或两者。 一旦一定数量的信用额到期，一个节点可以被限制借用进一步的资源，直到足够的资源被借出来建立一个合适数量的信用。 因此，公平性可以包括将共享资源消耗与共享资源供应相关联，以鼓励参与协作无线通信。

公开(公告)号：US08670777B2

公开(公告)日：2014-03-11

申请号：US11849595

申请日：2007-09-04

申请人： Mohammad Jaber Borran ,  Alexei Gorokhov ,  Aamod Khandekar ,  Tingfang Ji ,  Arumugam Chendamarai Kannan

发明人： Mohammad Jaber Borran ,  Alexei Gorokhov ,  Aamod Khandekar ,  Tingfang Ji ,  Arumugam Chendamarai Kannan

IPC分类号： H04W72/00

CPC分类号： H04W72/082

摘要： Systems and methods that facilitate management of interference and communication resources are provided. A differential approach is devised in which other-sector interference (OSI) and communication resources are managed by adjusting an offset (delta) value associated with the resources in response to receiving an indication of other-sector interference. An OSI indication can be issued based on a short and a long time scale, and effective interference metrics over time-frequency resources. The adjusted delta value is communicated to a serving access point, which reassigns communication resources in order to mitigate other-sector interference.

摘要翻译： 提供了便于管理干扰和通信资源的系统和方法。 设计出差分方法，其中响应于接收到其他扇区干扰的指示，通过调整与资源相关联的偏移量（delta）值来管理其他扇区干扰（OSI）和通信资源。 可以基于短时间和长时间尺度发出OSI指示，并且可以根据时间 - 频率资源发出有效的干扰度量。 经调整的增量值被传送到服务接入点，服务接入点重新分配通信资源以便减轻其他扇区干扰。

公开(公告)号：US08600424B2

公开(公告)日：2013-12-03

申请号：US12816134

申请日：2010-06-15

申请人： Wanshi Chen ,  Juan Montojo ,  Aamod Dinkar Khandekar ,  Tingfang Ji

发明人： Wanshi Chen ,  Juan Montojo ,  Aamod Dinkar Khandekar ,  Tingfang Ji

IPC分类号： H04W74/00

CPC分类号： H04W52/325 ,  H04W52/143 ,  H04W52/243 ,  H04W52/244 ,  H04W52/322

摘要： A method, an apparatus, and a computer program product for wireless communication are provided in which it is determined that a transmission of a first instance of control information in a first control region in a subframe of a first power class eNodeB a non-modified power spectral density (PSD) will result in interference above a threshold with a transmission of a second instance of control information in a second control region in a subframe of a second power class eNodeB, PSD is modified for a portion of at least one of the first or second control regions of at least one of the subframes for at least one of the first power class or second power class eNodeB, and the first instance of control information is transmitted during the control region using the modified PSD for the portion of the first instance of control information.

摘要翻译： 提供了一种用于无线通信的方法，装置和计算机程序产品，其中确定在第一功率等级eNodeB的子帧中的第一控制区域中的第一控制信息的第一实例的传输是未修改的功率 频谱密度（PSD）将导致高于阈值的干扰，其中在第二功率级eNodeB的子帧中的第二控制区域中传输第二控制信息，PSD被修改为第一 或用于第一功率级或第二功率级eNodeB中的至少一个的至少一个子帧的第二控制区域和控制信息的第一实例在控制区域期间使用用于第一实例的部分的修改的PSD 的控制信息。

公开(公告)号：US08442572B2

公开(公告)日：2013-05-14

申请号：US11848865

申请日：2007-08-31

申请人： Mohammad Jaber Borran ,  Aamod Khandekar ,  Alexei Gorokhov ,  Tingfang Ji ,  Naga Bhushan ,  Xin Zhang ,  Arumugam Chendamarai Kannan

发明人： Mohammad Jaber Borran ,  Aamod Khandekar ,  Alexei Gorokhov ,  Tingfang Ji ,  Naga Bhushan ,  Xin Zhang ,  Arumugam Chendamarai Kannan

IPC分类号： H04B7/185 ,  H04B7/00

CPC分类号： H04W24/02 ,  H04W52/16 ,  H04W52/243 ,  H04W52/44

摘要： Systems and methodologies are described that provide techniques for performing adjustments for delta-based power control and interference management in a wireless communication system. A terminal can utilize one or more delta-based power control techniques described herein upon engaging in a reverse link transmission after a predetermined period of silence or after receiving indications of interference from neighboring access points. A delta value can be computed through open-loop projection, based on which transmission resources such as bandwidth and/or transmit power can be increased or decreased to manage interference caused by the terminal. A delta value, other feedback from the terminal, and/or indications of interference caused by the terminal can also be communicated as feedback to a serving access point to allow the access point to assign transmission resources for the terminal.

摘要翻译： 描述了提供用于在无线通信系统中执行基于增量的功率控制和干扰管理的调整的技术的系统和方法。 在预定的静默期之后或在接收到来自相邻接入点的干扰的指示之后，终端可以利用本文所述的一个或多个基于增量的功率控制技术参与反向链路传输。 可以通过开环投影来计算增量值，基于可以增加或减少诸如带宽和/或发射功率的传输资源来管理由终端引起的干扰。 来自终端的增量值，其他反馈和/或由终端引起的干扰的指示也可以作为反馈传送到服务接入点，以允许接入点为终端分配传输资源。