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    • 4. 发明授权
    • Method and apparatus for performing handover with a relay node
    • 用于执行与中继节点的切换的方法和装置
    • US08320827B2
    • 2012-11-27
    • US12816002
    • 2010-06-15
    • Pascal M. AdjakpleStephen E. Terry
    • Pascal M. AdjakpleStephen E. Terry
    • H04B3/36
    • H04W36/0022H04B7/155H04W36/023H04W80/02H04W84/047
    • Techniques for performing a handover in a network with a relay node (RN) are disclosed. The RN is a node deployed between an eNodeB (eNB) and a wireless transmit/receive unit (WTRU). The RN receives data from one of the eNB and the WTRU and forwards it to the other. The RN receives a packet data convergence protocol (PDCP) protocol data unit (PDU) from a serving donor evolved Node-B (DeNB) and transmits it to the WTRU. The RN makes a handover decision based on the measurement report received from the WTRU. After making a handover decision, the RN sends a handover request or a control message to the serving DeNB including a first unsuccessfully transmitted PDCP sequence number (SN). The serving DeNB then discards a PDCP PDU with an SN older than the first unsuccessfully transmitted PDCP SN.
    • 公开了一种用于在具有中继节点(RN)的网络中执行切换的技术。 RN是部署在eNodeB(eNB)和无线发射/接收单元(WTRU)之间的节点。 RN从eNB和WTRU之一接收数据并将其转发给另一个。 RN从服务供体演进节点B(DeNB)接收分组数据会聚协议(PDCP)协议数据单元(PDU),并将其发送到WTRU。 RN根据从WTRU接收的测量报告进行切换决定。 在进行切换判定之后,RN向包括第一未成功发送的PDCP序列号(SN)的服务DeNB发送切换请求或控制消息。 服务的DeNB然后丢弃具有比第一个未成功发送的PDCP SN更早的SN的PDCP PDU。