发明名称 |
METHOD AND APPARATUS FOR RADIO LINK SYNCHRONIZATION AND POWER CONTROL IN CELL FACH AND IDLE MODE |
摘要 |
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. |
申请公布号 |
KR20100109957(A) |
申请公布日期 |
2010.10.11 |
申请号 |
KR20107018160 |
申请日期 |
2008.12.30 |
申请人 |
INTERDIGITAL PATENT HOLDINGS, INC. |
发明人 |
PELLETIER BENOIT;MARINIER PAUL;CAVE CHRISTOPHER R.;KIM IN H.;DIGIROLAMO ROCCO |
分类号 |
H04W52/36;H04W74/08 |
主分类号 |
H04W52/36 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|