发明名称 |
METHOD AND APPARATUS FOR RADIO LINK SYNCHRONIZATION AND POWER CONTROL IN CELL_FACH AND IDLE MODE |
摘要 |
<p>A method and apparatus for radio link synchronization and power control in CELL_FACH state and idle mode are disclosed. A wireless transmit/receive unit (WTRU) transmits a random access channel (RACH) preamble and receives an acquisition indicator acknowledging the RACH preamble via an acquisition indicator channel (AICH) and an index to an enhanced dedicated channel (E-DCH) resource. The WTRU determines a start of an E-DCH frame. An F-DPCH timing offset is defined with respect to one of the RACH access slot and an AICH access slot carrying the acquisition indicator. A relative F-DPCH timing offset may be signaled to the WTRU and the WTRU may determine a start of an E-DCH frame based on the relative F-DPCH timing offset and timing of an AICH access slot including the acquisition indicator. The WTRU may transmit a dedicated physical control channel (DPCCH) power control preamble before starting an E-DCH transmission.</p> |
申请公布号 |
KR101161973(B1) |
申请公布日期 |
2012.07.13 |
申请号 |
KR20107016707 |
申请日期 |
2008.12.30 |
申请人 |
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发明人 |
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分类号 |
H04W74/08;H04W52/22;H04W56/00 |
主分类号 |
H04W74/08 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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