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Multi-bank peak power reduction

A peak power, peak technology, applied in the field of radio communication systems, can solve problems such as expensive computing

Active Publication Date: 2014-06-18
TELEFON AB LM ERICSSON (PUBL)
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Generating the combined signal at baseband and performing peak power reduction is computationally expensive due to the need to support spaced frequencies to represent the combined signal using a high sampling rate

Method used

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  • Multi-bank peak power reduction
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  • Multi-bank peak power reduction

Examples

Experimental program
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Embodiment Construction

[0020] The following description of exemplary embodiments of the present invention refers to the accompanying drawings. The same reference numbers in different drawings identify the same or similar elements. The following detailed description does not limit the invention. Rather, the scope of the invention is defined by the appended claims.

[0021] Reference throughout this specification to "one embodiment" or "an embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment is included in at least one embodiment of the invention. Thus, appearances of the phrases "in one embodiment" or "in an embodiment" in various places throughout the specification are not necessarily all referring to the same embodiment. Furthermore, the particular features, structures, or characteristics may be combined in any suitable manner in one or more embodiments.

[0022] The exemplary embodiments address peak power reduction in frequency-sp...

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Abstract

Peak power reduction in transmit chains of multi-band radiocommunication devices is performed. By using knowledge of the phase transformations which occur at the upconverter to determine how baseband signal samples will combine at the higher (upconverted) frequency, peak prediction and corresponding baseband signal modification can be performed in a way that reduces peak power of the combined signal.

Description

technical field [0001] The present invention relates generally to radio communication systems, devices and methods, and more particularly, to mechanisms and techniques for peak power reduction in such radio communication systems, devices and methods. Background technique [0002] From its inception, radio technology was designed and used for voice communication. As the consumer electronics industry continues to mature and processor capabilities increase, more devices become available that allow wireless transfer of data between devices, and more applications that operate on such transferred data become available. Particular mention is made of the Internet and local area networks (LANs). These two innovations allow, among other things, multiple users and multiple devices to communicate and exchange data between different devices and device types. With the advent of these devices and capabilities, users (business and residential) have discovered the need to communicate data ...

Claims

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Application Information

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IPC IPC(8): H03F1/32H04L25/03H04L27/26
CPCH03F1/3282H03F2200/429H04L27/2614H03F3/189H03F2200/336H03F2200/111H04L25/03343H03G7/007H03F3/245
Inventor B.J.莫里斯N.麦克戈万S.M.基兰比
Owner TELEFON AB LM ERICSSON (PUBL)