发明授权
- 专利标题: Digitally convertible radio
- 专利标题(中): 数字转换收音机
-
申请号: US10307624申请日: 2002-12-02
-
公开(公告)号: US07206355B2公开(公告)日: 2007-04-17
- 发明人: Neil N. McGowan , Marthinus W. Da Silveira , Mihai Parvan , Matthew Conrod
- 申请人: Neil N. McGowan , Marthinus W. Da Silveira , Mihai Parvan , Matthew Conrod
- 申请人地址: CA St. Laurent, Quebec
- 专利权人: Nortel Networks Limited
- 当前专利权人: Nortel Networks Limited
- 当前专利权人地址: CA St. Laurent, Quebec
- 代理机构: Garlick Harrison & Markison
- 代理商 James A. Harrison
- 主分类号: H04L27/00
- IPC分类号: H04L27/00
摘要:
A forward link transmitter in a sectored cell includes a baseband processor having traditional baseband signal digital processing circuitry in addition to including a digital hybrid matrix (vector and delay compensated transformation module) whose phase and amplitude (vector) and delay may be adjusted to compensate for downstream errors that are introduced and detected by a feedback circuit. Accordingly, the baseband processor, by monitoring an output of an analog hybrid matrix producing modulated and amplified radio frequency (RF) signals just prior to propagation from an antenna, can determine errors produced by the analog circuitry including the analog hybrid matrix and may compensate for the same by introducing an amplitude, phase and delay adjustment (in the digital domain) into output digital waveform signals to compensate for the error introduced downstream to the baseband processor.
公开/授权文献
- US20040105509A1 Digitally convertible radio 公开/授权日:2004-06-03
信息查询