COOPERATION AND OPERATION OF MACRO NODE AND REMOTE RADIO HEAD DEPLOYMENTS IN HETEROGENEOUS NETWORKS
    31.
    发明申请
    COOPERATION AND OPERATION OF MACRO NODE AND REMOTE RADIO HEAD DEPLOYMENTS IN HETEROGENEOUS NETWORKS 有权
    宏观节点和远程无线电头部合作在异构网络中的合作与运作

    公开(公告)号:US20120207105A1

    公开(公告)日:2012-08-16

    申请号:US13349073

    申请日:2012-01-12

    IPC分类号: H04W72/08

    摘要: A method, an apparatus, and a computer program product for wireless communication are provided for separating control transmissions and data transmissions within the coverage area of a plurality of transmission/reception points or points that are geographically displaced, the plurality of points comprising a macro node and a plurality of remote radio heads (RRHs) coupled to the macro node. Separating control transmissions and data transmissions in the macro node/RRH configuration may allow UEs to be associated with one set of transmission points for data transmissions and the same set or a different set of transmission points for common control signaling. Separating control transmissions and data transmissions may also allow for faster reconfiguration of antenna ports used for UE data transmission compared with reconfiguration via a handover process.

    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,用于分离多个发送/接收点或地理位移的点的覆盖区域内的控制传输和数据传输,所述多个点包括宏节点 以及耦合到所述宏节点的多个远程无线电头(RRH)。 在宏节点/ RRH配置中分离控制传输和数据传输可以允许UE与用于数据传输的一组传输点和用于公共控制信令的相同集合或不同的传输点集合相关联。 与通过切换过程的重新配置相比,分离控制传输和数据传输还可以允许用于UE数据传输的天线端口的更快的重新配置。

    Method and apparatus for enabling channel and interference estimations in macro/RRH system
    33.
    发明授权
    Method and apparatus for enabling channel and interference estimations in macro/RRH system 有权
    在宏/ RRH系统中实现信道和干扰估计的方法和装置

    公开(公告)号:US09544108B2

    公开(公告)日:2017-01-10

    申请号:US13336599

    申请日:2011-12-23

    IPC分类号: H04W24/10 H04L5/00 H04L25/02

    摘要: Aspects disclosed herein relate to channel and interference estimations in a multiple transmission point environment including an eNB and RRHs. In the disclosed aspects, one or more transmission points can signal to a UE to measure channel state conditions based on a first and a second resource pattern. The UE may receive the signaling and perform interference estimation based at least in part on the first resource pattern, and channel estimation based at least in part on the second resource pattern. The UE may generate a channel state report based on the interference and channel estimations, and transmit the channel state report to a transmission point. The eNB may employ the received channel state report in scheduling one or more resources for use by the UE, and may select or adjust network traffic on the first and the second resource pattern, to affect the resulting channel and interference estimation.

    摘要翻译: 本文公开的方面涉及包括eNB和RRH在内的多传输点环境中的信道和干扰估计。 在所公开的方面中,一个或多个传输点可以向UE发信号,以基于第一和第二资源模式测量信道状态条件。 UE可以至少部分地基于第一资源模式接收信令并执行干扰估计,以及至少部分地基于第二资源模式来进行信道估计。 UE可以基于干扰和信道估计产生信道状态报告,并将信道状态报告发送到传输点。 eNB可以使用所接收的信道状态报告来调度一个或多个资源供UE使用,并且可以选择或调整第一和第二资源模式上的网络流量,以影响所得到的信道和干扰估计。

    Serving base station selection in a wireless communication network
    34.
    发明授权
    Serving base station selection in a wireless communication network 有权
    在无线通信网络中提供基站选择

    公开(公告)号:US08483168B2

    公开(公告)日:2013-07-09

    申请号:US13556094

    申请日:2012-07-23

    IPC分类号: H04W4/00 H04B7/185

    摘要: Techniques for selecting a serving base station for a terminal in a wireless communication network are described. In one design, multiple candidate base stations for the terminal may be identified, with each candidate base station being a candidate for selection as the serving base station for the terminal. The multiple candidate base stations may include base stations with different transmit power levels and/or may support interference mitigation. One of the multiple candidate base stations may be selected as the serving base station. In one design, the serving base station may be selected based on at least one metric for each candidate base station. The at least one metrics may be for pathloss, effective transmit power, effective geometry, projected data rate, control channel reliability, network utility, etc. The selected candidate base station may have a lower SINR than a highest SINR among the multiple candidate base stations.

    摘要翻译: 描述了用于在无线通信网络中为终端选择服务基站的技术。 在一种设计中,可以识别用于终端的多个候选基站,其中每个候选基站是用于选择的候选作为终端的服务基站。 多个候选基站可以包括具有不同发射功率电平的基站和/或可以支持干扰减轻。 可以选择多个候选基站中的一个作为服务基站。 在一种设计中,可以基于每个候选基站的至少一个度量来选择服务基站。 所述至少一个度量可以用于路径损耗,有效发射功率,有效几何,投影数据速率,控制信道可靠性,网络效用等。所选择的候选基站可以具有比多个候选基站中的最高SINR更低的SINR 。

    DL MU-MIMO operation in LTE-A
    35.
    发明授权
    DL MU-MIMO operation in LTE-A 有权
    LTE-A中的DL MU-MIMO操作

    公开(公告)号:US09137802B2

    公开(公告)日:2015-09-15

    申请号:US12857112

    申请日:2010-08-16

    IPC分类号: H04W4/00 H04W72/04 H04W72/08

    摘要: Techniques for scheduling UEs are described. In one design, a scheduler (e.g., for a cell) may receive channel direction information (CDI) and channel strength information (CSI) from a plurality of UEs. In one design, the CDI from each UE may include at least one eigenvector, and the CSI from each UE may include at least one singular value corresponding to the at least one eigenvector. The scheduler may schedule at least one UE among the plurality of UEs for data transmission based on the CDI and CSI from the plurality of UEs. The scheduler may select the at least one UE based on a metric related to signal-to-leakage ratio (SLR), or spectral efficiency, etc. In one design, the scheduler may evaluate the performance of different sets of UEs to determine whether to schedule one UE for single-user MIMO or multiple UEs for multi-user MIMO.

    摘要翻译: 描述用于调度UE的技术。 在一种设计中,调度器(例如,用于小区)可以从多个UE接收信道方向信息(CDI)和信道强度信息(CSI)。 在一种设计中,来自每个UE的CDI可以包括至少一个特征向量,并且来自每个UE的CSI可以包括对应于该至少一个特征向量的至少一个奇异值。 调度器可以基于来自多个UE的CDI和CSI来调度多个UE中的至少一个UE进行数据传输。 调度器可以基于与信号泄漏比(SLR)或频谱效率等相关的度量来选择至少一个UE。在一个设计中,调度器可以评估不同组的UE的性能,以确定是否 调度一个UE用于单用户MIMO或多个UE用于多用户MIMO。

    HIERARCHICAL CLUSTERING FRAMEWORK FOR INTER-CELL MIMO SYSTEMS
    37.
    发明申请
    HIERARCHICAL CLUSTERING FRAMEWORK FOR INTER-CELL MIMO SYSTEMS 有权
    用于内部小区MIMO系统的层次聚类框架

    公开(公告)号:US20100041411A1

    公开(公告)日:2010-02-18

    申请号:US12541038

    申请日:2009-08-13

    IPC分类号: H04W72/00

    CPC分类号: H04W88/08

    摘要: A method for wireless communications is provided. The method includes forming a first set of wireless components into a master cluster that provides upper level service functionality to a subset of user devices. The method includes forming a second set of wireless components into a nested cluster that is associated with the master cluster, where the nested cluster provides data transfer to and from the subset of user devices.

    摘要翻译: 提供了一种用于无线通信的方法。 该方法包括将第一组无线组件形成为向用户设备的子集提供高级服务功能的主集群。 该方法包括将第二组无线组件形成到与主集群相关联的嵌套集群中,其中嵌套集群向用户设备的子集提供数据传输。

    DL MU-MIMO operation in LTE-A
    39.
    发明申请
    DL MU-MIMO operation in LTE-A 有权
    LTE-A中的DL MU-MIMO操作

    公开(公告)号:US20110194593A1

    公开(公告)日:2011-08-11

    申请号:US12857112

    申请日:2010-08-16

    IPC分类号: H04W72/08 H04W24/00

    摘要: Techniques for scheduling UEs are described. In one design, a scheduler (e.g., for a cell) may receive channel direction information (CDI) and channel strength information (CSI) from a plurality of UEs. In one design, the CDI from each UE may include at least one eigenvector, and the CSI from each UE may include at least one singular value corresponding to the at least one eigenvector. The scheduler may schedule at least one UE among the plurality of UEs for data transmission based on the CDI and CSI from the plurality of UEs. The scheduler may select the at least one UE based on a metric related to signal-to-leakage ratio (SLR), or spectral efficiency, etc. In one design, the scheduler may evaluate the performance of different sets of UEs to determine whether to schedule one UE for single-user MIMO or multiple UEs for multi-user MIMO.

    摘要翻译: 描述用于调度UE的技术。 在一种设计中,调度器(例如,用于小区)可以从多个UE接收信道方向信息(CDI)和信道强度信息(CSI)。 在一种设计中,来自每个UE的CDI可以包括至少一个特征向量,并且来自每个UE的CSI可以包括对应于该至少一个特征向量的至少一个奇异值。 调度器可以基于来自多个UE的CDI和CSI来调度多个UE中的至少一个UE进行数据传输。 调度器可以基于与信号泄漏比(SLR)或频谱效率等相关的度量来选择至少一个UE。在一个设计中,调度器可以评估不同组的UE的性能,以确定是否 调度一个UE用于单用户MIMO或多个UE用于多用户MIMO。