Radio communication transmitter apparatus and method
A radio communication transmitter apparatus 20 is operable to transmit multiple radio frequency bands in a telecommunication system. The apparatus comprises a plurality of digital transmitter chains 211 to 21N, wherein each digital transmitter chain is coupled to receive a digital representation 271...
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Main Authors | , |
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Format | Patent |
Language | English |
Published |
12.01.2016
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Subjects | |
Online Access | Get full text |
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Summary: | A radio communication transmitter apparatus 20 is operable to transmit multiple radio frequency bands in a telecommunication system. The apparatus comprises a plurality of digital transmitter chains 211 to 21N, wherein each digital transmitter chain is coupled to receive a digital representation 271 to 27N of a respective base band signal for processing by a respective digital transmitter chain. Each digital transmitter chain 211 to 21N comprises a digital transmitter 251 to 25N that is adapted to convert a respective digital base band signal directly into a digital representation of a radio frequency signal 231 to 23N. A digital combining unit 25 is coupled to receive the output of each digital transmitter chain 211 to 21N, and adapted to combine the digital representation of a radio frequency signal 231 to 23N received from each digital transmitter chain 211 to 21N into a digital representation of a radio frequency signal 26 comprising multiple radio frequency bands. A digital to analogue converter 27 is coupled to receive the digital representation of a radio frequency signal 26 comprising multiple radio frequency bands, and adapted to convert the digital representation of a radio frequency signal 26 into an analogue radio frequency signal 28 comprising multiple radio frequency bands. |
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Bibliography: | Application Number: US201214398504 |