发明授权
US08615002B2 Method and apparatus for radio link synchronization and power control in cell—fach and idle mode
有权
无线电链路同步和电池和空闲模式下功率控制的方法和装置
- 专利标题: Method and apparatus for radio link synchronization and power control in cell—fach and idle mode
- 专利标题(中): 无线电链路同步和电池和空闲模式下功率控制的方法和装置
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申请号: US12346617申请日: 2008-12-30
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公开(公告)号: US08615002B2公开(公告)日: 2013-12-24
- 发明人: Benoit Pelletier , Paul Marinier , Christopher R. Cave , In H. Kim , Rocco DiGirolamo
- 申请人: Benoit Pelletier , Paul Marinier , Christopher R. Cave , In H. Kim , Rocco DiGirolamo
- 申请人地址: US DE Wilmington
- 专利权人: InterDigital Patent Holdings, Inc.
- 当前专利权人: InterDigital Patent Holdings, Inc.
- 当前专利权人地址: US DE Wilmington
- 代理机构: Volpe and Koenig, P.C.
- 主分类号: H04J3/06
- IPC分类号: H04J3/06 ; G08C17/00 ; H04W4/00 ; H04B7/212
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.