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    • 21. 发明申请
    • Uplink Synchronization Maintenance Principles in Wireless Networks
    • 无线网络上行同步维护原则
    • US20130242973A1
    • 2013-09-19
    • US13531006
    • 2012-06-22
    • Pierre BertrandTarik MuharemovicZukang Shen
    • Pierre BertrandTarik MuharemovicZukang Shen
    • H04J3/06
    • H04J3/06H04W56/0005H04W56/0045
    • A cell within cellular network includes user equipments (UEs) that transmit data to a base station (eNB). Over a period of time, not all of the UEs will have data to transmit. The UEs are tracked as a scheduled portion and an unscheduled portion, wherein a UE is included in the scheduled portion in response to receiving a scheduling request from the UE. Synchronization is maintained between the eNB and each UE in the scheduled portion by sending a timing adjustment (TA) command if needed. Synchronization is maintained between the eNB and each UE in the unscheduled portion by allocating a periodic reference signal (sync-RS) to each UE in the unscheduled portion and by sending a respective timing adjustment (TA) command if needed to each respective UE in the unscheduled portion in response to a respective sync-RS received from each UE in the unscheduled portion.
    • 蜂窝网络内的小区包括向基站(eNB)发送数据的用户设备(UE)。 在一段时间内,不是所有的UE都将具有要发送的数据。 UE被跟踪为调度部分和未调度部分,其中响应于从UE接收调度请求而将UE包括在调度部分中。 如果需要,通过发送定时调整(TA)命令,在被调度部分中的eNB与每个UE之间保持同步。 通过向非调度部分中的每个UE分配周期性参考信号(sync-RS),并且如果需要,在每个相应的UE中发送相应的定时调整(TA)命令,则在未调度部分中的eNB与每个UE之间维持同步 响应于在非预定部分中从每个UE接收到的相应同步RS,非预定部分。
    • 23. 发明授权
    • Uplink synchronization maintenance principles in wireless networks
    • 无线网络上行同步维护原理
    • US08218526B2
    • 2012-07-10
    • US12111810
    • 2008-04-29
    • Pierre BertrandTarik MuharemovicZukang Shen
    • Pierre BertrandTarik MuharemovicZukang Shen
    • H04J3/06
    • H04J3/06H04W56/0005H04W56/0045
    • A cell within cellular network includes user equipments (UEs) that transmit data to a base station (eNB). UEs are synchronized to the eNB upon entry to the cell. If a particular UE has data to transmit, it will be placed in a connected state and scheduled for transmission. Over a period of time, not all of the UEs will have data to transmit. The UEs are tracked as a scheduled portion and an unscheduled portion, wherein a UE is included in the scheduled portion in response to receiving a scheduling request from the UE. Synchronization is maintained between the eNB and each UE in the scheduled portion by sending a timing adjustment (TA) command if needed in response to receiving a scheduled transmission from each respective UE in the scheduled portion; Synchronization is maintained between the eNB and each UE in the unscheduled portion by allocating a periodic reference signal (sync-RS) to each UE in the unscheduled portion and by sending a respective timing adjustment (TA) command if needed to each respective UE in the unscheduled portion in response to a respective sync-RS received from each UE in the unscheduled portion.
    • 蜂窝网络内的小区包括向基站(eNB)发送数据的用户设备(UE)。 在进入小区时,UE与eNB同步。 如果特定的UE具有要发送的数据,则它将处于连接状态并被调度以进行传输。 在一段时间内,不是所有的UE都将具有要发送的数据。 UE被跟踪为调度部分和未调度部分,其中响应于从UE接收调度请求而将UE包括在调度部分中。 如果需要,响应于从调度部分中的每个相应UE接收到调度的传输,通过发送定时调整(TA)命令来在所述调度部分中的eNB与每个UE之间维持同步; 通过向非调度部分中的每个UE分配周期性参考信号(sync-RS),并且如果需要,在每个相应的UE中发送相应的定时调整(TA)命令,则在未调度部分中的eNB与每个UE之间维持同步 响应于在非预定部分中从每个UE接收到的相应同步RS,非预定部分。
    • 24. 发明授权
    • Selection of orthogonal covering sequences and phase ramped sequences
    • 正交覆盖序列和相位斜坡序列的选择
    • US08169950B2
    • 2012-05-01
    • US12136221
    • 2008-06-10
    • Zukang ShenTarik MuharemovicPierre Bertrand
    • Zukang ShenTarik MuharemovicPierre Bertrand
    • H04W4/00
    • H04L27/2613H04J13/00H04J13/16H04L5/0007H04L5/0053
    • A transmission of information from a secondary to a primary node occurs in a plurality of N logical time durations. The transmission from the secondary to primary node in a wireless network is obtained using a first and a second sequence. Embodiments of the present invention mitigate interference by restricting the choice of the first sequence. Thus, in an embodiment of the invention, the first sequence is selected from a set of M sequences wherein M is strictly less than N. In order to accommodate high-velocity users, the restricted set contains a pair of sequences whose element-wise product is mirror symmetric. In other embodiments of the invention, the choices of the first sequence and second sequence in a time-frequency resource is arranged such that interference is mitigated. A transmission component for K-th logical time duration is obtained from the entire second sequence and K-th element of the first sequence.
    • 信息从次级到主节点的传输发生在多个N个逻辑时间段内。 使用第一和第二序列获得从无线网络中的次级到主节点的传输。 本发明的实施例通过限制第一序列的选择来减轻干扰。 因此,在本发明的一个实施例中,第一序列选自M个严格小于N的M序列集合。为了适应高速用户,受限集合包含一对序列,其元素乘积 是镜像对称的。 在本发明的其他实施例中,时间 - 频率资源中的第一序列和第二序列的选择被布置成使得可以减轻干扰。 从第一序列的整个第二序列和第K个元素获得用于第K个逻辑持续时间的传输分量。
    • 26. 发明授权
    • Allocation of block spreading sequences
    • 块扩展序列的分配
    • US08059735B2
    • 2011-11-15
    • US12129378
    • 2008-05-29
    • Zukang ShenTarik MuharemovicPierre Bertrand
    • Zukang ShenTarik MuharemovicPierre Bertrand
    • H04L27/28
    • H04W72/0406
    • A transmission of information from a secondary to a primary node occurs in a plurality of N logical time durations. The transmission from the secondary to primary node in a wireless network is obtained using a first and a second sequence. Embodiments of the present invention mitigate interference by restricting the choice of the first sequence. Thus, in an embodiment of the invention, the first sequence is selected from a set of M sequences wherein M is strictly less than N. In order to accommodate high-velocity users, the restricted set contains a pair of sequences whose element-wise product is mirror symmetric. A transmission component for K-th logical time duration is obtained from the entire second sequence and K-th element of the first sequence.
    • 信息从次级到主节点的传输发生在多个N个逻辑时间段内。 使用第一和第二序列获得从无线网络中的次级到主节点的传输。 本发明的实施例通过限制第一序列的选择来减轻干扰。 因此,在本发明的一个实施例中,第一序列选自M个严格小于N的M序列集合。为了适应高速用户,受限集合包含一对序列,其元素乘积 是镜像对称的。 从第一序列的整个第二序列和第K个元素获得用于第K个逻辑持续时间的传输分量。