发明授权
US08107991B2 Method and apparatus for selecting enhanced dedicated channel transport format combination in CELL—FACH state and idle mode
有权
用于在CELL-FACH状态和空闲模式下选择增强型专用信道传输格式组合的方法和装置
- 专利标题： Method and apparatus for selecting enhanced dedicated channel transport format combination in CELL—FACH state and idle mode
- 专利标题（中）： 用于在CELL-FACH状态和空闲模式下选择增强型专用信道传输格式组合的方法和装置
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申请号： US12408128申请日： 2009-03-20
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公开(公告)号： US08107991B2公开(公告)日： 2012-01-31
- 发明人: Benoit Pelletier , Paul Marinier , Vincent Roy , Diana Pani , Christopher R. Cave
- 申请人： Benoit Pelletier , Paul Marinier , Vincent Roy , Diana Pani , Christopher R. Cave
- 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： Condo Roccia LLP
- 主分类号： H04W52/04
- IPC分类号： H04W52/04 ; H04B7/00 ; H04J1/16
摘要：
A method and apparatus for selecting an enhanced dedicated channel (E-DCH) transport format combination (E-TFC) 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 index to an E-DCH resource in response to the RACH preamble. The WTRU may estimate a power headroom based on the maximum WTRU transmit power, power offset value, and the last successfully transmitted RACH preamble transmit power. The WTRU restricts an E-TFC based on the estimated power headroom, and selects an E-TFC based on a set of supported E-TFCs. The WTRU then generates, and transmits, a protocol data unit (PDU) based on the selected E-TFC.
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