Invention Grant
- Patent Title: Data transmission method, base station and transmitter for compensating for non-linearities in a transmission chain
- Patent Title (中): 数据传输方法,基站和发射机,用于补偿传输链中的非线性
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Application No.: US10630975Application Date: 2003-07-31
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Publication No.: US07035601B2Publication Date: 2006-04-25
- Inventor: Miia Karjalainen , Samu Saarinen , Kauko Heinikoski , Teemu Tolonen , Juha Ylinen , Jani Suonperä , Risto Lehtinen
- Applicant: Miia Karjalainen , Samu Saarinen , Kauko Heinikoski , Teemu Tolonen , Juha Ylinen , Jani Suonperä , Risto Lehtinen
- Applicant Address: FI Espoo
- Assignee: Nokia Corporation
- Current Assignee: Nokia Corporation
- Current Assignee Address: FI Espoo
- Agency: Squire, Sanders & Dempsey L.L.P.
- Main IPC: H04B1/04
- IPC: H04B1/04

Abstract:
A transmitter compensates for the non-linearities within a transmission chain. The transmitter includes, for instance, a first forming device for forming, on the basis of at least one set of signal properties, at least one state expansion vector comprising quantities characterizing a signal. The transmitter includes a modifier for modifying the signal characterizing quantities of at least one state expansion vector with the at least one time-domain compensation parameter vector and with the at least one frequency-domain compensation parameter vector to form a pre-distorted signal. The transmitter includes a second forming device for forming a feedback signal from an output signal of a transmission chain. The transmitter includes an adapter for adapting at least one time-domain compensation parameter vector for adapting at least one frequency-domain compensation parameter vector based on a residual error between a transmit signal and the feedback signal.
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