EXPLOITING SPATIAL DEGREES OF FREEDOM IN MULTIPLE INPUT MULTIPLE OUTPUT (MIMO) RADIO SYSTEMS
    51.
    发明申请
    EXPLOITING SPATIAL DEGREES OF FREEDOM IN MULTIPLE INPUT MULTIPLE OUTPUT (MIMO) RADIO SYSTEMS 有权
    在多输入多输出(MIMO)无线电系统中开展自由空间自由度

    公开(公告)号:US20140126666A1

    公开(公告)日:2014-05-08

    申请号:US13871962

    申请日:2013-04-26

    IPC分类号: H04B7/04

    CPC分类号: H04B7/0413 H04B7/024

    摘要: Methods and apparatuses, including computer program products, are provided for determining the null-space for a channel between a transmitter and an unintended receiver. In one aspect there is provided a method. The method may include transmitting, by a secondary transmitter, a plurality of learning signals, determining, for each of the plurality of learning signals, a value representative of an interference caused by the transmitting to an unintended receiver, determining, based on the determined values, a null-space for a channel between the secondary transmitter and the unintended receiver and transmitting, by the secondary transmitter, a signal in accordance with the determined null-space.

    摘要翻译: 提供了包括计算机程序产品的方法和装置,用于确定发射机和非预期接收机之间的信道的空间空间。 在一个方面,提供了一种方法。 所述方法可以包括由辅助发射机发送多个学习信号,为所述多个学习信号中的每个学习信号确定表示由所述发送到非预期接收机所引起的干扰的值,基于所确定的值 ,用于次级发射机和非预期接收机之间的信道的零空间,并且由次级发射机根据确定的空间空间发送信号。

    INTRA CELL INTERFERENCE MITIGATION IN A WIRELESS NETWORK EMPLOYING RELAY NODES
    54.
    发明申请
    INTRA CELL INTERFERENCE MITIGATION IN A WIRELESS NETWORK EMPLOYING RELAY NODES 有权
    使用继电器的无线网络内干扰减轻

    公开(公告)号:US20140029507A1

    公开(公告)日:2014-01-30

    申请号:US14008699

    申请日:2011-04-01

    IPC分类号: H04B7/155

    摘要: A method and relay node (RN) in a wireless communications network for controlling downlink transmissions to User Equipments (UEs) being served by the RN. An RN transceiver circuit requests each UE to measure and report a Reference Signal Received Power (RSRP) and a UE total downlink interference. An RN receiver circuit receives and forwards the reported RSRP and UE total downlink interference for each UE. An RN processing and control circuit measures an RN total downlink interference; determines which UEs are closely located to the RN based on the reported RSRP of each UE; creates a UE-list with UEs determined to be closely located to the RN and which experience UE total downlink interference similar to the measured RN total downlink interference; determines whether the measured RN total downlink interference exceeds an RN interference threshold; and if so, controls the downlink transmissions to the UEs in the created UE-list.

    摘要翻译: 一种用于控制由RN服务的用户设备(UE)的下行链路传输的无线通信网络中的方法和中继节点(RN)。 RN收发器电路请求每个UE测量和报告参考信号接收功率(RSRP)和UE总下行链路干扰。 RN接收机电路接收并转发所报告的每个UE的RSRP和UE总下行链路干扰。 RN处理和控制电路测量RN总下行链路干扰; 基于所报告的每个UE的RSRP,确定哪些UE紧邻RN; 创建UE被确定为紧邻RN的UE列表,并且经历与总测量的RN下行链路干扰类似的UE总下行链路干扰; 确定测量的RN总下行链路干扰是否超过RN干扰阈值; 并且如果是,则在创建的UE列表中控制到UE的下行链路传输。

    DYNAMIC MOBILITY MANAGEMENT IN CELL-BREATHING BASE STATIONS IN A CELLULAR TELECOMMUNICATION NETWORK
    55.
    发明申请
    DYNAMIC MOBILITY MANAGEMENT IN CELL-BREATHING BASE STATIONS IN A CELLULAR TELECOMMUNICATION NETWORK 有权
    蜂窝电信网络中呼吸基站的动态移动性管理

    公开(公告)号:US20140011534A1

    公开(公告)日:2014-01-09

    申请号:US13541134

    申请日:2012-07-03

    摘要: In a cellular communication network, a method of dynamic mobility management in which a base station employing cell-breathing or other similar energy-efficiency mechanism notifies User Equipments (UEs) in its cell, either via broadcasting or with direct over-the-air signaling, that such a mechanism is utilized within the cell. The base station may also notify neighbor base stations of its use of cell-breathing. The neighbor base stations disseminate this information to UEs within their own cells, and consider this information when deciding whether to hand over a UE to a base station that is capable of performing cell-breathing. The base station may also inform UEs in the cell and/or neighbor base stations when it is preparing to reduce transmission power. UEs store information regarding which base stations use cell-breathing, and consider this information when performing cell reselections.

    摘要翻译: 在蜂窝通信网络中,一种动态移动性管理的方法,其中采用蜂窝呼吸或其他类似能量效率机制的基站通过广播或直接空中信令通知其小区中的用户设备(UE) 这种机制在单元内被利用。 基站还可以通知邻近基站其使用细胞呼吸。 相邻基站将该信息传播到其自己的小区内的UE,并且在决定是否将UE切换到能够执行小区呼吸的基站时考虑该信息。 当基站准备降低发射功率时,基站还可以通知小区和/或邻近基站中的UE。 UE存储关于哪个基站使用小区呼吸的信息,并且在进行小区重选时考虑该信息。

    Radio resource management based on parameters indicating imbalance between uplink and downlink
    56.
    发明授权
    Radio resource management based on parameters indicating imbalance between uplink and downlink 有权
    基于上下行链路不平衡参数的无线资源管理

    公开(公告)号:US08606288B2

    公开(公告)日:2013-12-10

    申请号:US12602180

    申请日:2008-05-09

    IPC分类号: H04W72/00 H04W36/00 H04W4/00

    CPC分类号: H04W92/20 H04W36/08 H04W36/24

    摘要: The present invention relates to methods and arrangements for radio base stations of a wireless communication network, enabling each radio base station to transmit parameters indicating imbalance between UL and DL to adjacent radio base stations, when it is triggered to do so. The adjacent radio base stations can then use the parameters for radio resource management decisions such as HO decisions, whenever needed.

    摘要翻译: 本发明涉及一种无线通信网络的无线电基站的方法和装置,使得每个无线电基站在被触发时能够将指示UL和DL之间的不平衡的参数发送到相邻的无线电基站。 然后,当需要时,相邻的无线电基站可以使用诸如HO决定之类的无线电资源管理决定的参数。

    DYNAMIC BAND SELECTION FOR INTERFERENCE MINIMIZATION IN DIRECT DEVICE TO DEVICE COMMUNICATIONS
    57.
    发明申请
    DYNAMIC BAND SELECTION FOR INTERFERENCE MINIMIZATION IN DIRECT DEVICE TO DEVICE COMMUNICATIONS 有权
    用于直接设备到设备通信的干扰最小化的动态带选择

    公开(公告)号:US20130294296A1

    公开(公告)日:2013-11-07

    申请号:US13465303

    申请日:2012-05-07

    IPC分类号: H04W72/08 H04J1/00 H04J3/00

    摘要: Systems and methods are disclosed for selecting resources for direct device to device (D2D) communications in a cellular communication network. Preferably, resources for the direct D2D communications are selected to minimize, or at least substantially reduce, interference that results from the direct D2D communications in the cellular communication network. In general, either an uplink resource or a downlink resource of the cellular communication network is selected for a direct D2D communication link between a first wireless device and a second wireless device in order to minimize, or at least substantially reduce, interference caused to a third wireless device that uses the same uplink and downlink resources in the same and/or a neighboring cell of the cellular communication network.

    摘要翻译: 公开了用于在蜂窝通信网络中选择用于直接设备到设备(D2D)通信的资源的系统和方法。 优选地,选择用于直接D2D通信的资源以最小化或至少基本上减少由蜂窝通信网络中的直接D2D通信产生的干扰。 通常,对于第一无线设备和第二无线设备之间的直接D2D通信链路,选择蜂窝通信网络的上行链路资源或下行链路资源,以便最小化或至少基本上减少对第三无线设备造成的干扰 无线设备,其在蜂窝通信网络的相同和/或相邻小区中使用相同的上行链路和下行链路资源。

    Fractional frequency reuse in heterogeneous networks
    58.
    发明授权
    Fractional frequency reuse in heterogeneous networks 有权
    异构网络中的分数频率重用

    公开(公告)号:US08559961B2

    公开(公告)日:2013-10-15

    申请号:US13110385

    申请日:2011-05-18

    摘要: A base station node (BS) of a heterogeneous radio access network comprises a terminal locator (34) and a scheduler (36). The terminal locator (34) obtains an indication of location of a wireless terminal (30) in a cell served by the base station (BS), e.g., whether the wireless terminal (30) is in a center region (M) or an edge region (E) for the cell served by the base station node (BS). The scheduler (36) uses the indication of location to assign to the wireless terminal (30) a frequency of a frequency bandwidth usable by the heterogeneous radio access network. The scheduler (36) assigns a frequency from a partitioned portion of the frequency bandwidth if the cell served by the base station node is a micro cell and the wireless terminal is in an edge region of a micro cell. The scheduler (36) also assigns a frequency of the frequency bandwidth if the cell served by the base station node is a micro cell and the wireless terminal is in a center portion of the micro cell.

    摘要翻译: 异构无线电接入网络的基站节点(BS)包括终端定位器(34)和调度器(36)。 终端定位器(34)获得由基站(BS)服务的小区中无线终端(30)的位置的指示,例如无线终端(30)是否在中心区域(M)或边缘 用于由基站节点(BS)服务的小区的区域(E)。 调度器(36)使用位置指示来向无线终端(30)分配异构无线接入网可使用的频率带宽的频率。 如果由基站节点服务的小区是微小区并且无线终端位于微小区的边缘区域,则调度器(36)从频带的分割部分分配频率。 如果由基站节点服务的小区是微小区,并且无线终端位于微小区的中心部分,则调度器(36)还分配频率带宽的频率。

    DYNAMIC RESOURCE SELECTION TO REDUCE INTERFERENCE THAT RESULTS FROM DIRECT DEVICE TO DEVICE COMMUNICATIONS
    59.
    发明申请
    DYNAMIC RESOURCE SELECTION TO REDUCE INTERFERENCE THAT RESULTS FROM DIRECT DEVICE TO DEVICE COMMUNICATIONS 有权
    动态资源选择可以减少从直接设备到设备通信的干扰

    公开(公告)号:US20130252621A1

    公开(公告)日:2013-09-26

    申请号:US13525752

    申请日:2012-06-18

    IPC分类号: H04W72/08

    摘要: Systems and methods are disclosed for selecting resources for direct device to device (D2D) communications in a cellular communication network. In one embodiment, a downlink resource is selected as a resource for a direct D2D communication link between a first wireless device and a second wireless device if a base station serving each of the first and second wireless devices is equipped with an interference cancellation receiver and both the first and second wireless devices are less than a predefined threshold radio distance from their serving base station. An uplink resource is selected as a resource for the direct D2D communication link if the base station serving each of the first and second wireless devices is equipped with an interference cancellation receiver and at least one of the first and second wireless devices is more than the predefined threshold radio distance from its serving base station.

    摘要翻译: 公开了用于在蜂窝通信网络中选择用于直接设备到设备(D2D)通信的资源的系统和方法。 在一个实施例中,如果向第一和第二无线设备中的每一个提供服务的基站配备有干扰消除接收机,并且两者都兼有,那么下行链路资源被选择为用于第一无线设备和第二无线设备之间的直接D2D通信链路的资源 第一和第二无线设备小于与其服务基站的预定义的阈值无线电距离。 如果为第一和第二无线设备中的每一个服务的基站配备有干扰消除接收机,则将上行链路资源选择为用于直接D2D通信链路的资源,并且第一和第二无线设备中的至少一个超过预定义的 与其服务基站的距离无线电距离。

    Handling radio link failure in a radio communications network
    60.
    发明授权
    Handling radio link failure in a radio communications network 有权
    在无线电通信网络中处理无线电链路故障

    公开(公告)号:US08515415B2

    公开(公告)日:2013-08-20

    申请号:US12977875

    申请日:2010-12-23

    IPC分类号: H04W24/00

    CPC分类号: H04W36/0055

    摘要: Embodiments herein relate to a method in a user equipment for handling a radio link failure in a radio communications network. The user equipment is served in a first cell controlled by a radio base station. The radio base station is comprised in the radio communications network, The user equipment detects a first indication of a failure of a radio link between the user equipment and the radio base station. The user equipment then transmits a second indication of radio link failure to the radio base station when the first indication is detected.

    摘要翻译: 本文的实施例涉及用于处理无线电通信网络中的无线电链路故障的用户设备中的方法。 用户设备在由无线电基站控制的第一小区中服务。 无线基站包括在无线通信网络中,用户设备检测用户设备和无线基站之间的无线链路的故障的第一指示。 然后,当检测到第一指示时,用户设备向无线电基站发送无线电链路故障的第二指示。