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    • 53. 发明申请
    • METHOD AND APPARATUS FOR PERFORMING BLIND TRANSPORT FORMAT DETECTION
    • 用于执行BLIND运输格式检测的方法和装置
    • WO2008115377A3
    • 2009-03-12
    • PCT/US2008003239
    • 2008-03-12
    • INTERDIGITAL TECH CORPWANG JINWANG PETER STERRY STEPHEN E
    • WANG JINWANG PETER STERRY STEPHEN E
    • H04L1/00H04L1/18
    • H04L1/0038H04L1/0002H04L1/0009H04L1/0025H04L1/0026H04L1/0029H04L1/0032H04L1/1867
    • Methods and apparatus for performing efficient blind transport format (TF) detection in wireless communication systems are disclosed based on TF groups and efficient hybrid automatic repeat request (HARQ) assisted blind TF detection for retransmissions. When a receiver detects a failure for an initial transmission, a transmitter receives an HARQ negative acknowledgement (NACK) or no feedback from the receiver beyond a certain duration. The transmitter uses the same transport format combination (TFC) for a first retransmission as is used for the initial transmission for data detection, and if the first retransmission fails and after the transmitter gets the HARQ NACK or no feedback from the receiver beyond the certain duration, the transmitter uses a next more robust TFC for a second retransmission and the receiver should also to use next more robust TFC for data detection for the second retransmission from the transmitter. Alternatively, the transmitter uses the next robust TF for the first retransmission.
    • 基于TF组和用于重发的有效混合自动重复请求(HARQ)辅助盲TF检测,公开了在无线通信系统中执行有效的盲传输格式(TF)检测的方法和装置。 当接收机检测到初始传输失败时,发射机接收到HARQ否定确认(NACK),或者没有接收机超过一定持续时间的反馈。 发射机对于用于初始传输用于数据检测的第一次重传使用相同的传输格式组合(TFC),并且如果第一重传失败并且在发射机获得HARQ NACK之后,或者在接收机之后没有来自超过该持续时间的反馈 ,发射机使用下一个更稳健的TFC进行第二次重传,并且接收机还应该使用下一个更稳健的TFC来进行来自发射机的第二次重传的数据检测。 或者,发射机使用下一个强大的TF进行第一次重传。
    • 57. 发明申请
    • HANDOVER IN A LONG TERM EVOLUTION (LTE) WIRELESS COMMUNICATION SYSTEM
    • 长时间演进(LTE)无线通信系统中的切换
    • WO2007149509A3
    • 2008-02-07
    • PCT/US2007014423
    • 2007-06-19
    • INTERDIGITAL TECH CORPWANG JINCHANDRA ARTYTERRY STEPHEN E
    • WANG JINCHANDRA ARTYTERRY STEPHEN E
    • H04W36/08H04W56/00
    • H04W36/0061H04W36/00H04W36/0055H04W36/0072H04W36/0083H04W56/001H04W92/20
    • A method and system for performing handover in a third generation (3G) long term evolution (LTE) system are disclosed. A source evolved Node-B (eNode-B) makes a handover decision based on measurements and sends a handover request to a target eNode-B. The target eNode-B sends a handover response to the source eNode-B indicating that a handover should commence. The source eNode-B then sends a handover command to a wireless transmit/receive unit (WTRU). The handover command includes at least one of reconfiguration information, information regarding timing adjustment, relative timing difference between the source eNode-B and the target eNode-B, information regarding an initial scheduling procedure at the target eNode-B, and measurement information for the target eNode-B. The WTRU then accesses the target eNode-B and exchanges layer 1/2 signaling to perform downlink synchronization, timing adjustment, and uplink and downlink resource assignment based on information included in the handover command.
    • 公开了一种在第三代(3G)长期演进(LTE)系统中进行切换的方法和系统。 源演进节点B(eNode-B)基于测量进行切换决定,并向目标eNode-B发送切换请求。 目标eNode-B向源eNode-B发送指示切换应该开始的切换响应。 源eNode-B然后向无线发射/接收单元(WTRU)发送切换命令。 切换命令包括重新配置信息,关于定时调整的信息,源eNode-B和目标eNode-B之间的相对定时差异,关于目标eNode-B的初始调度过程的信息,以及关于 目标eNode-B。 然后,WTRU基于包括在切换命令中的信息来访问目标eNode-B并交换层1/2信令以执行下行链路同步,定时调整以及上行链路和下行链路资源分配。
    • 60. 发明申请
    • METHOD AND SYSTEM FOR ADJUSTING UPLINK TRANSMISSION TIMING FOR LONG TERM EVOLUTION HANDOVER
    • 调整长期演进切换的上行链路传输时序的方法和系统
    • WO2007075559A2
    • 2007-07-05
    • PCT/US2006048229
    • 2006-12-18
    • INTERDIGITAL TECH CORPTERRY STEPHEN EWANG JIN
    • TERRY STEPHEN EWANG JIN
    • H04W36/00H04W36/08H04W56/00
    • H04W36/0077H04W36/0072H04W36/0083H04W56/0015H04W56/0045H04W92/10
    • A method and system for adjusting uplink transmission timing when sending an initial transmission to a target cell/Node-B of an evolved universal terrestrial radio access network (E-UTRAN) immediately after handover from a source cell/Node-B of the E-UTRAN. In one embodiment, a user equipment (UE) autonomously computes and applies a timing advance (TA) value based on the current source cell/Node-B timing value, cell/Node-B beacon channel reference signal measurements and knowledge of the relative time difference, (if any), between the source and target cells/Node-Bs. In another embodiment, the UE sends a scheduling request message or real data packets with the computed TA value applied to the uplink transmission timing to the E-UTRAN via pre-allocated non-contention based uplink radio resources. In an alternate embodiment, the UE sends a scheduling request message with the new computed TA value applied to the UL transmission timing to an E-UTRAN via a synchronous random access channel (RACH).
    • 一种用于在从E-UTRAN的源小区/节点B切换之后立即向演进的通用陆地无线接入网络(E-UTRAN)的目标小区/节点B发送初始传输时调整上行链路传输定时的方法和系统, UTRAN。 在一个实施例中,用户设备(UE)基于当前源小区/节点B定时值,小区/节点B信标信道参考信号测量以及相对时间的知识自主地计算和应用定时提前(TA)值 差异(如果有的话)在源小区/目标小区/节点-B之间。 在另一个实施例中,UE通过预先分配的基于非竞争的上行链路无线电资源向E-UTRAN发送具有应用于上行链路传输定时的计算的TA值的调度请求消息或实际数据分组。 在替代实施例中,UE通过同步随机接入信道(RACH)向E-UTRAN发送具有应用于UL传输定时的新计算的TA值的调度请求消息。