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Base-band to radio frequency up-converter

A frequency converter and baseband technology, applied in the field of active antenna devices

Active Publication Date: 2014-05-28
TELEFON AB LM ERICSSON (PUBL)
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, since the output signal of the 4:3 mode baseband to the RF upconverter is the return of the opposite code, the power amplifier used in the transmitter has to be adapted to be compatible with 4:3 mode

Method used

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  • Base-band to radio frequency up-converter
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  • Base-band to radio frequency up-converter

Examples

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Embodiment Construction

[0036] The present invention will now be described based on the drawings. It will be understood that the embodiments and aspects of the invention described herein are examples only and do not limit the scope of protection of the claims in any way. The invention is defined by the claims and their equivalents. It will be appreciated that features of one aspect or embodiment of the invention may be combined with features of a different aspect and / or embodiment of the invention.

[0037] figure 1 A first aspect of a baseband to radio frequency upconverter 1 according to the present disclosure is shown. The baseband to radio frequency upconverter 1 may form part of a transmitter for a mobile communication system which transmits a radio frequency signal modulated onto a carrier signal, whereby the carrier signal has a carrier frequency fCarrier. The up-converter 1 of the baseband to radio frequency includes a phase converter 2, a first all-pass delay filter 41, a second all-pass...

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Abstract

A base band to frequency up-converter (1) is described wherein the base band to frequency up-converter (1) comprises a first input (201) for receiving a first base band signal of first base band samples and a second input (202) for receiving a second base band signal of second base band samples and an output (TX) for providing up-converted radio signal samples. The base-band to radio frequency up-converter (1) further comprises a phase converter (2) for converting the first base band signal of first base band samples and the second base band signal of second base band samples into a first intermediate signal (Xn) of first intermediate samples, a second intermediate signal (Yn) of second intermediate samples, and a third intermediate signal (Zn) of third intermediate samples. The intermediate samples are then up-converted into radio signal samples.

Description

[0001] Cross References to Related Applications [0002] This application claims the benefit of and priority to US Patent Application No. 13 / 105,097, "Base-Band to Radio Frequency Up-Converter," filed May 11, 2011. technical field [0003] The field of the present application relates generally to baseband to radio frequency up-converters and active antenna arrangements comprising at least baseband to radio frequency up-converters. The field of the present application also relates to a method of manufacturing a chipset with a baseband to radio frequency upconverter and a computer program product for manufacturing a baseband to radio frequency upconverter. Background technique [0004] The use of mobile communication networks has been increasing over the past decade. Operators of mobile communication networks have been increasing the number of base stations to meet the increased demand for services from users of the mobile communication network. Operators of mobile communic...

Claims

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Application Information

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IPC IPC(8): H03M3/00
CPCH03M3/30H03M3/508Y10T29/49002
Inventor 乌多·卡特豪斯
Owner TELEFON AB LM ERICSSON (PUBL)