发明名称 |
WIRELESS COMMUNICATION METHOD AND APPARATUS COORDINATING NODE-B'S AND SUPPORTING ENHANCED UPLINK TRANSMISSIONS DURING HANDOVER |
摘要 |
A wireless communication method and apparatus for coordinating Node-Bs during handover for enhanced uplink (EU) transmission. In one embodiment, a radio network controller (RNC) initiates an inter-Node-B soft handover. A wireless transmit/receive unit (WTRU) establishes communication connections with a plurality of Node-Bs. A particular one of the Node-Bs is designated as being a primary Node-B, and each of other Node-Bs are designated as being a non-primary Node-B. The RNC informs all of the Node-Bs that the particular Node-B is a primary Node-B. The primary Node-B schedules EU transmission and performs ACK/NACK during soft handover. In another embodiment, the RNC initiates a hard handover for a WTRU connected to a source Node-B. The RNC sends an activation timer to the source Node-B to set the time for handover. As many previously negatively acknowledged (NACKed) data packets as possible are prioritized for retransmission in the source Node-B before the activation timer expires. |
申请公布号 |
CA2836724(A1) |
申请公布日期 |
2005.05.26 |
申请号 |
CA20042836724 |
申请日期 |
2004.10.29 |
申请人 |
SIGNAL TRUST FOR WIRELESS INNOVATION |
发明人 |
ZHANG, GUODONG;SHIN, SUNG-HYUK;TERRY, STEPHEN E.;MILLER, JAMES M.;DICK, STEPHEN G. |
分类号 |
H04W36/18;H04L1/18;H04W36/02;H04W36/08;H04W36/12;H04W72/12;H04W72/14 |
主分类号 |
H04W36/18 |
代理机构 |
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