发明申请
US20090109937A1 SELECTING TRANSMISSION PARAMETERS FOR CONTENTION-BASED ACCESS IN WIRELESS SYSTEMS
审中-公开
在无线系统中选择基于接收的访问的传输参数
- 专利标题： SELECTING TRANSMISSION PARAMETERS FOR CONTENTION-BASED ACCESS IN WIRELESS SYSTEMS
- 专利标题（中）： 在无线系统中选择基于接收的访问的传输参数
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申请号： US12257524申请日： 2008-10-24
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公开(公告)号： US20090109937A1公开(公告)日： 2009-04-30
- 发明人: Christopher R. Cave , Paul Marinier , Benoit Pelletier , Diana Pani , Rocco DiGirolamo , Vincent Roy
- 申请人： Christopher R. Cave , Paul Marinier , Benoit Pelletier , Diana Pani , Rocco DiGirolamo , Vincent Roy
- 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
- 主分类号： H04W74/00
- IPC分类号： H04W74/00 ; H04W72/00
摘要：
A method and apparatus are disclosed for selecting a channel for uplink communication includes determining whether a cell supports transmission over an enhanced random access channel (E-RACH) and selecting whether to send uplink communications over the E-RACH or a random access channel. A method for selecting a transmission time interval (TTI) for use on an E-RACH includes evaluating radio conditions measured at a user equipment and selecting a long TTI if radio conditions are bad and selecting a short TTI if radio conditions are good. Alternatively, the TTI can be selected based on an amount of data to be transmitted on the uplink. A user equipment, an integrated circuit, or a Node B can be configured to perform either method.