CLOSED LOOP POWER CONTROL IN A HETEROGENEOUS NETWORK BY SELECTING AMONG SETS OF ACCUMULATIVE POWER STEP VALUES
    1.
    发明申请
    CLOSED LOOP POWER CONTROL IN A HETEROGENEOUS NETWORK BY SELECTING AMONG SETS OF ACCUMULATIVE POWER STEP VALUES 有权
    通过选择累积功率阶跃值集合,在异构网络中闭环控制

    公开(公告)号:US20130040675A1

    公开(公告)日:2013-02-14

    申请号:US13463119

    申请日:2012-05-03

    IPC分类号: H04W52/08 H04W24/10 H04W72/04

    摘要: A method is provided in a wireless device for controlling output transmission power from the wireless device. A set is selected among a plurality of sets of power step values, which reside in a memory of the wireless device, responsive to criteria defined in the wireless device. A power control command is received from a radio network node. One of the power step values of the selected set is selected responsive to the power control command. The output transmission power from the wireless device is controlled responsive to the selected power step value. Related methods in radio network nodes and apparatuses are disclosed.

    摘要翻译: 在无线设备中提供一种用于控制来自无线设备的输出传输功率的方法。 响应于无线设备中定义的标准,在驻留在无线设备的存储器中的多组功率步长值中选择一组。 从无线电网络节点接收功率控制命令。 响应于功率控制命令选择所选组的功率阶跃值之一。 响应于所选择的功率阶跃值来控制来自无线设备的输出传输功率。 公开了无线电网络节点和设备中的相关方法。

    Closed loop power control in a heterogeneous network by selecting among sets of accumulative power step values
    3.
    发明授权
    Closed loop power control in a heterogeneous network by selecting among sets of accumulative power step values 有权
    通过选择累积功率阶跃值的集合,在异构网络中进行闭环功率控制

    公开(公告)号:US08849339B2

    公开(公告)日:2014-09-30

    申请号:US13463119

    申请日:2012-05-03

    摘要: A method is provided in a wireless device for controlling output transmission power from the wireless device. A set is selected among a plurality of sets of power step values, which reside in a memory of the wireless device, responsive to criteria defined in the wireless device. A power control command is received from a radio network node. One of the power step values of the selected set is selected responsive to the power control command. The output transmission power from the wireless device is controlled responsive to the selected power step value. Related methods in radio network nodes and apparatuses are disclosed.

    摘要翻译: 在无线设备中提供一种用于控制来自无线设备的输出传输功率的方法。 响应于无线设备中定义的标准,在驻留在无线设备的存储器中的多组功率步长值中选择一组。 从无线电网络节点接收功率控制命令。 响应于功率控制命令选择所选组的功率阶跃值之一。 响应于所选择的功率阶跃值来控制来自无线设备的输出传输功率。 公开了无线电网络节点和设备中的相关方法。

    Soft Cell Inter-Layer Interference Handling
    4.
    发明申请
    Soft Cell Inter-Layer Interference Handling 有权
    软单元层间干扰处理

    公开(公告)号:US20130310059A1

    公开(公告)日:2013-11-21

    申请号:US13640337

    申请日:2012-07-30

    IPC分类号: H04W72/04

    摘要: In a heterogeneous cell deployment a mobile terminal may need to receive control data transmissions from a macro node at the same time as a pico node is transmitting user data for the mobile terminal, using the same frequency or set of frequencies. This can result in a problematic interference situation. According to several embodiments of the present invention, at least one of two general approaches is used to mitigate the interference situation described above. In a first approach, the pico node's transmission power is reduced in some time intervals, thereby reducing the interference to a level where reception from the macro node is possible. In a second approach, which may be combined with the first approach in some cases, the data transmitted from the macro node is provided by the pico node, either alone or in combination with the macro node.

    摘要翻译: 在异构小区部署中,移动终端可能需要在微微节点正在使用相同的频率或频率集合来传送移动终端的用户数据的同时从宏节点接收控制数据传输。 这可能导致有问题的干扰情况。 根据本发明的几个实施例,使用两种一般方法中的至少一种来减轻上述干扰情况。 在第一种方法中,微微节点的传输功率在一些时间间隔内减小,从而将干扰降低到可能从宏节点接收的水平。 在一些可能与第一种方法组合的第二种方法中,从宏节点发送的数据由微微节点提供,单独或与宏节点组合。

    Soft cell inter-layer interference handling
    5.
    发明授权
    Soft cell inter-layer interference handling 有权
    软细胞层间干扰处理

    公开(公告)号:US08744468B2

    公开(公告)日:2014-06-03

    申请号:US13640337

    申请日:2012-07-30

    IPC分类号: H04W72/04

    摘要: In a heterogeneous cell deployment a mobile terminal may need to receive control data transmissions from a macro node at the same time as a pico node is transmitting user data for the mobile terminal, using the same frequency or set of frequencies. This can result in a problematic interference situation. According to several embodiments of the present invention, at least one of two general approaches is used to mitigate the interference situation described above. In a first approach, the pico node's transmission power is reduced in some time intervals, thereby reducing the interference to a level where reception from the macro node is possible. In a second approach, which may be combined with the first approach in some cases, the data transmitted from the macro node is provided by the pico node, either alone or in combination with the macro node.

    摘要翻译: 在异构小区部署中,移动终端可能需要在微微节点正在使用相同的频率或频率集合为移动终端发送用户数据的同时从宏节点接收控制数据传输。 这可能导致有问题的干扰情况。 根据本发明的几个实施例,使用两种一般方法中的至少一种来减轻上述干扰情况。 在第一种方法中,微微节点的传输功率在一些时间间隔内减小,从而将干扰降低到可能从宏节点接收的水平。 在一些可能与第一种方法组合的第二种方法中,从宏节点发送的数据由微微节点单独提供,或与宏节点组合。

    Efficient use of reference symbol resources in a hierarchical heterogeneous cell deployment
    7.
    发明授权
    Efficient use of reference symbol resources in a hierarchical heterogeneous cell deployment 有权
    在分层异构单元部署中有效利用参考符号资源

    公开(公告)号:US08995293B2

    公开(公告)日:2015-03-31

    申请号:US13389490

    申请日:2011-11-02

    摘要: Techniques for collecting channel-state-information, CSI, feedback in a wireless network that comprises a plurality of geographically separated transmission points (110, 120) include methods in which a set of CSI reference symbol, CSI-RS, resources are identified, which correspond to the union of CSI-RS resources used by multiple transmission points (110, 120) in the primary transmission point's coverage area. A mobile station (130) is configured to measure CSI-RS on a subset of the CSI-RS resources, the subset corresponding to CSI-RS resources used by a subset of the transmission points (110, 120). The mobile station (130) is also configured to assume that no downlink data will be transmitted in the remaining portion of the set of CSI-RS resources. CSI feedback is then received from the mobile station (130), based on measurements of the CSI-RS.

    摘要翻译: 用于收集包括多个地理上分离的传输点(110,120)的无线网络中的信道状态信息,CSI,反馈的技术包括其中识别出一组CSI参考符号CSI-RS资源的方法, 对应于主要传输点的覆盖区域中由多个传输点(110,120)使用的CSI-RS资源的并集。 移动站(130)被配置为测量CSI-RS资源的子集上的CSI-RS,子集对应于由传输点(110,120)的子集使用的CSI-RS资源。 移动站(130)还被配置为假设在CSI-RS资源集合的剩余部分中不会发送下行链路数据。 然后基于CSI-RS的测量从移动站(130)接收CSI反馈。

    Synchronization of PICO-nodes in a heterogeneous cellular network deployment
    8.
    发明授权
    Synchronization of PICO-nodes in a heterogeneous cellular network deployment 有权
    在异构蜂窝网络部署中同步PICO节点

    公开(公告)号:US08954104B2

    公开(公告)日:2015-02-10

    申请号:US13389605

    申请日:2011-11-02

    IPC分类号: H04B7/00 H04W56/00 H04W16/32

    摘要: A high-power point (110) and one or more low-power points (120) transmit signals associated with the same cell-identifier in a heterogeneous cell deployment. Coverage areas corresponding to the low-power points (120) fall at least partly within the coverage area for the high-power point, so that mobile stations (130) within range of a low-power point are also within range of the high-power point (110). A low-power point (120) measures timing or frequency, or both, of one or more signals received at the low-power point (120) from the high-power point (110), and adjusts the timing or frequency, or both, of a transmission from the low-power point (120) to a mobile station (130), to align the transmission with signals received by the mobile station (130) from the high-power point (110).

    摘要翻译: 高功率点(110)和一个或多个低功率点(120)在异构小区部署中发送与相同小区标识符相关联的信号。 对应于低功率点(120)的覆盖区域至少部分落在高功率点的覆盖区域内,使得在低功率点范围内的移动站(130)也在高功率点范围内, 电源点(110)。 低功率点(120)测量从高功率点(110)在低功率点(120)处接收的一个或多个信号的定时或频率或两者,并且调整定时或频率,或者两者 从低功率点(120)到移动站(130)的传输,将传输与移动站(130)从高功率点(110)接收的信号对准。

    Method and Arrangement in a Telecommunication System
    9.
    发明申请
    Method and Arrangement in a Telecommunication System 有权
    电信系统中的方法和布置

    公开(公告)号:US20120165029A1

    公开(公告)日:2012-06-28

    申请号:US13393730

    申请日:2011-03-31

    IPC分类号: H04W72/04

    摘要: A method and an arrangement (800) in a user equipment (420) for reporting Channel State Information, CSI, and a method and an arrangement (1000) in a base station (410) for obtaining CSI are provided. The user equipment (420) is in connection with the base station (410) in a cellular communication network (400). After receiving a receiving (702) a grant in a subframe n to be used for CSI reporting, from the base station, the user equipment determines (703) subframe type of a subframe n+p. The user equipment then reports (704) to the base station, CSI reflecting channel conditions in the subframe type of subframe n+p. p is a variable value.

    摘要翻译: 提供了一种用于在用于获取CSI的基站(410)中报告信道状态信息,CSI以及方法和装置(1000)的用户设备(420)中的方法和装置(800)。 用户设备(420)在蜂窝通信网络(400)中与基站(410)连接。 在从基站接收到用于CSI报告的子帧n中的接收(702)授权之后,用户设备确定(703)子帧n + p的子帧类型。 用户设备然后向基站报告(704)CSI反映子帧n + p的子帧类型中的信道条件。 p是一个变量值。

    Distribution of cell-common downlink signals in a hierarchical heterogeneous cell deployment
    10.
    发明授权
    Distribution of cell-common downlink signals in a hierarchical heterogeneous cell deployment 有权
    分层异构单元部署中的小区公共下行链路信号的分布

    公开(公告)号:US09300450B2

    公开(公告)日:2016-03-29

    申请号:US13389501

    申请日:2011-11-02

    摘要: A high-power point (110) and one or more low-power points (120) transmit signals that are associated with the same cell-identifier in a heterogeneous cell deployment. The coverage areas corresponding to the low-power points (120) fall at least partly within the coverage area for the high-power point (110), so that mobile stations (130) within range of a low-power point are also within range of the high-power point (110), from a downlink perspective. The same CRS signals are transmitted by both the high-power (macro) point (110) and some or all of the low-power (pico) points (120). At the same time, the network transmits CRS-based PDSCH for a particular UE on both the high-power point (110) as well as on some or all of the low-power points (120). In some embodiments only a subset of the points, e.g., those points that the UE hears sufficiently well, participate in the PDSCH transmission using CRS for channel estimation.

    摘要翻译: 高功率点(110)和一个或多个低功率点(120)在异构小区部署中发送与相同小区标识符相关联的信号。 对应于低功率点(120)的覆盖区域至少部分地落在高功率点(110)的覆盖区域内,使得在低功率点范围内的移动站(130)也在范围内 的高功率点(110)。 相同的CRS信号由高功率(宏)点(110)和部分或全部低功率(微微)点(120)发射。 同时,网络在高功率点(110)以及部分或全部低功率点(120)上为特定UE发送基于CRS的PDSCH。 在一些实施例中,仅使用UE的子集,例如UE充分良好地听到的那些点参与用于信道估计的CRS的PDSCH传输。