公开(公告)号：US08090331B2

公开(公告)日：2012-01-03

申请号：US13036936

申请日：2011-02-28

Applicant: Xin Ju ,  Wen Zhao ,  Qingzhong Jiao

Inventor： Xin Ju ,  Wen Zhao ,  Qingzhong Jiao

IPC: H04B1/04

CPC classification number: H04B1/0475 ,  H03F1/32 ,  H03F1/3223 ,  H03F3/24 ,  H03F2200/336 ,  H03F2200/451 ,  H03G3/3042 ,  H04B1/7103 ,  H04B17/327 ,  H04B2001/0441 ,  H04W52/16 ,  H04W52/346

Abstract: It has now been found that in some transmitter implementations which transmit multiple code channels, for example CDMA transmitters, the observed power for each code channel at the output relative to the other code channels is dependent upon the total transmit power due to non-linearities in the transmitter. Methods and apparatus are provided which use pre-set digital gains or digital gain adjustments to compensate for the non-linearities as a function of total transmit power such that at the output, the desired relative powers are observed.

Abstract translation: 现在已经发现，在一些发送多个码信道的发射机实现中，例如CDMA发射机，相对于其它码信道在输出处的每个码信道的观测功率取决于由于非线性的总发射功率 发射机。 提供了使用预设数字增益或数字增益调整来补偿作为总发射功率的函数的非线性的方法和装置，使得在输出处观察到期望的相对功率。