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    Limited duty cycle FDD system
    65.
    发明授权
    Limited duty cycle FDD system 有权
    有限工作周期FDD系统

    公开(公告)号：US09450707B2

    公开(公告)日：2016-09-20

    申请号：US13172402

    申请日：2011-06-29

    申请人： Tingfang Ji ,  Peter Gaal

    发明人： Tingfang Ji ,  Peter Gaal

    IPC分类号： H04J1/00 ,  H04L1/16 ,  H04L1/18 ,  H04W72/12

    CPC分类号： H04L1/16 ,  H04L1/1854 ,  H04W72/1268

    摘要： Acknowledgment bundling has been defined for Long Term Evolution (LTE) Time Division Duplex (TDD) systems due to asymmetric DL/UL partitioning. In the case of Frequency Division Duplex (FDD) with a limited uplink (UL) duty cycle, there may be asymmetry associated with a downlink transmission and an associated uplink acknowledgment. For example, there may be a physical downlink shared channel (PDSCH) and a physical uplink control channel (PUCCH) hybrid automatic repeat request acknowledgment (HARQ-ACK) asymmetry. Interference between downlink and uplink transmissions may be a factor contributing to the limited UL duty cycle in an FDD system. For an FDD system having a limited mobile transmission duty cycle, both DL and UL performance may be significantly degraded without proper mitigation techniques. According to certain embodiments of the present disclosure, various HARQ and scheduling techniques may be utilized for minimizing loss due to the limited UL duty cycle.

    摘要翻译： 由于不对称的DL / UL划分，已经为长期演进（LTE）时分双工（TDD）系统定义了确认捆绑。 在具有有限上行链路（UL）占空比的频分双工（FDD）的情况下，可能存在与下行链路传输和相关联的上行链路确认相关联的不对称性。 例如，可以存在物理下行链路共享信道（PDSCH）和物理上行链路控制信道（PUCCH）混合自动重传请求确认（HARQ-ACK）不对称性。 下行链路和上行链路传输之间的干扰可能是导致FDD系统中限制的UL占空比的因素。 对于具有有限移动传输占空比的FDD系统，如果没有适当的缓解技术，DL和UL性能可能会显着降低。 根据本公开的某些实施例，可以利用各种HARQ和调度技术来最小化由于有限的UL占空比导致的损失。

    Method and apparatus for mitigating data loss during autonomous system information reading
    67.
    发明授权
    Method and apparatus for mitigating data loss during autonomous system information reading 有权
    在自动系统信息读取期间减轻数据丢失的方法和装置

    公开(公告)号：US09179395B2

    公开(公告)日：2015-11-03

    申请号：US13007950

    申请日：2011-01-17

    申请人： Tingfang Ji ,  Peter Gaal ,  Gene Fong ,  Kapil Bhattad ,  Yongbin Wei

    发明人： Tingfang Ji ,  Peter Gaal ,  Gene Fong ,  Kapil Bhattad ,  Yongbin Wei

    IPC分类号： H04W72/04 ,  H04W88/08 ,  H04W76/00 ,  H04W48/16 ,  H04L1/18

    CPC分类号： H04W36/0061 ,  H04L1/1845 ,  H04L1/1867 ,  H04W36/0016 ,  H04W48/16 ,  H04W56/001

    摘要： Techniques for mitigating data loss during autonomous system information (SI) reading by a user equipment (UE) are described. For autonomous SI reading, the UE may autonomously determine when to read system information from neighbor cells and may not inform a serving cell. In one design, the UE may autonomously select a SI reading gap for reading system information from a neighbor cell. During the SI reading gap, the UE may suspend reception of downlink transmission from the serving cell, receive system information from the neighbor cell, and maintain capability to transmit on the uplink to the serving cell. In one design, the serving cell may determine SI reading gaps autonomously selected by the UE for reading system information from neighbor cells. The serving cell may communicate with the UE by accounting for the SI reading gaps of the UE, e.g., may suspend communication with the UE during the SI reading gaps.

    摘要翻译： 描述用于减轻由用户设备（UE）读取的自治系统信息（SI）期间的数据丢失的技术。 对于自主SI读取，UE可以自主地确定何时从相邻小区读取系统信息，并且可以不通知服务小区。 在一种设计中，UE可以自主地选择用于从相邻小区读取系统信息的SI读取间隙。 在SI读取间隙期间，UE可以暂停从服务小区的下行链路传输的接收，从相邻小区接收系统信息，并保持在上行链路上发送到服务小区的能力。 在一种设计中，服务小区可以确定由UE自主选择的用于从相邻小区读取系统信息的SI读取间隙。 服务小区可以通过考虑UE的SI读取间隙来与UE进行通信，例如，可能在SI读取间隙期间暂停与UE的通信。

    MOBILITY PROCEDURES IN WIRELESS NETWORKS WITH DISTRIBUTED REMOTE RADIO HEADS
    69.
    发明申请
    MOBILITY PROCEDURES IN WIRELESS NETWORKS WITH DISTRIBUTED REMOTE RADIO HEADS 审中-公开
    具有分布式远程无线电头的无线网络中的移动性程序

    公开(公告)号：US20120208541A1

    公开(公告)日：2012-08-16

    申请号：US13371407

    申请日：2012-02-11

    申请人： Xiliang Luo ,  Hao Xu ,  Wanshi Chen ,  Tingfang Ji ,  Peter Gaal ,  Juan Montojo

    发明人： Xiliang Luo ,  Hao Xu ,  Wanshi Chen ,  Tingfang Ji ,  Peter Gaal ,  Juan Montojo

    IPC分类号： H04W36/32 ,  H04W36/30

    CPC分类号： H04L5/00 ,  H04B7/022 ,  H04B7/0626 ,  H04L5/0035 ,  H04L5/0048 ,  H04L5/0057 ,  H04W88/085

    摘要： Wireless networks may include remote radio heads (RRHs) for extending the coverage of a macro cell. The macro cell may be connected to the RRHs, for example, by optical fiber, and there may be negligible latency between the macro cell and the RRHs. As a user equipment (UE) moves within the macro cell, or between other macro cells, mobility procedures followed by the UE may vary based on the release of the UE (e.g., Rel-8/9, Rel-10, or Rel-11 and beyond). The macro cell may handle all the scheduling within the cell, for itself and the RRHs.

    摘要翻译： 无线网络可以包括用于扩展宏小区的覆盖的远程无线电头（RRH）。 宏小区可以例如通过光纤连接到RRH，并且在宏小区和RRH之间可能存在可忽略的等待时间。 当用户设备（UE）在宏小区内或其他宏小区之间移动时，UE所遵循的移动性过程可以基于UE的释放而变化（例如，Rel-8/9，Rel-10或Rel- 11及以上）。 宏小区可以处理单元内的所有调度，用于其本身和RRH。

    BLANK SUBFRAME UPLINK DESIGN
    70.
    发明申请
    BLANK SUBFRAME UPLINK DESIGN 有权
    空白子帧上传设计

    公开(公告)号：US20100135235A1

    公开(公告)日：2010-06-03

    申请号：US12626236

    申请日：2009-11-25

    申请人： Tingfang Ji ,  Peter Gaal

    发明人： Tingfang Ji ,  Peter Gaal

    IPC分类号： H04W72/04

    CPC分类号： H04W72/082 ,  H04B7/2606 ,  H04W74/0866 ,  H04W84/047

    摘要： Blank subframe link design uses reduced bandwidth either explicit or derived for Closed Subscriber Group (CSG) cell interference mitigation, enabling a non-allowed User Equipment (UE) to co-exist with CSG cells on the same carrier. One could specify UL blank subframes to orthogonalize non-allowed UE and allowed UE transmissions on UL either via explicit UL blank subframe definition or derived from DL blank subframe definition. Scheduling can orthogonalize data transmissions. A femto cell temporarily reducing uplink bandwidth can mitigate uplink control channel residual interference from a non-allowed UE. A relay configures RACH occasion to coincide with non-blank UL subframes as much as possible. UE knowledge of RACH occasion is sufficient to start RACH and hand over procedure. RACH occasions with 10 ms periodicity are supported by assigning all odd/even uplink HARQ interlaces to relay. RACH occasions with 20 ms periodicity are supported by assigning any of the 1/4 UL HARQ interlaces to relay.

    摘要翻译： 空白子帧链路设计使用明确的或针对封闭用户组（CSG）小区干扰减轻的减少的带宽，使得不允许的用户设备（UE）与同一载波上的CSG小区共存。 可以指定UL空白子帧，以通过显式UL空白子帧定义或从DL空白子帧定义导出在UL上正确化非允许UE和允许的UE传输。 调度可以正交化数据传输。 暂时减少上行链路带宽的毫微微小区可以减轻来自不允许的UE的上行链路控制信道残留干扰。 继电器尽可能地配置RACH时机以与非空白UL子帧重合。 UE对RACH场合的了解足以启动RACH和移交程序。 通过将所有奇/偶上行HARQ交织分配给中继来支持具有10ms周期性的RACH场合。 通过将任何1/4 UL HARQ交织分配给中继，支持具有20ms周期的RACH场合。