Method for radio transmission by means of ultra-wideband transmission

A radio transmission and line spectrum technology, which is applied in transmission systems, digital transmission systems, baseband systems, etc., can solve the problems of circuit technology consumption and achieve the effect of stable transmission

Active Publication Date: 2016-06-22
SIEMENS AG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

This is very expensive in terms of circuit technology

Method used

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  • Method for radio transmission by means of ultra-wideband transmission
  • Method for radio transmission by means of ultra-wideband transmission
  • Method for radio transmission by means of ultra-wideband transmission

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Embodiment Construction

[0030] In the examples to be explained below, the described components of the system each represent individual features of the invention, considered independently of one another, which also respectively expand the invention independently of one another and thus also differ individually or in combinations from those shown. Combinations are considered to be part of the present invention. Furthermore, the described embodiments can also be supplemented by further features of the invention which have already been described.

[0031] exist figure 2 In the above diagram plot the absolute value |S| of the line spectrum S of the UWB transmitter's transmitted signal at frequency f, as when the UWB transmitter transmits in the time grid with grid duration 1 / frep with the corresponding As obtained when the time signal or the pulse of the pulse signal p(t) is obtained. In other words, these pulses are sent at the same time interval 1 / frep, i.e. with repetition rate frep. That is, the p...

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Abstract

The invention relates to a method of radio transmission of message symbols, in which a pulse phase modulated transmit signal is transmitted by a UWB transmitter, the transmit signal comprising separate pulses, wherein each pulse has a time offset with respect to a time grid, the offset Depending on the message symbols representing the pulses, and generally the transmitted signal has a line spectrum (S) with a number of modulated frequency lines (30, 32). According to the method, the transmitted signal is received by a receiver by which a narrowband signal is obtained from a single modulated frequency line (28), wherein the modulated frequency line (28) generally comprises a time grid corresponding to A bandwidth (D) of less than twice the raster frequency (frep), then determine the phase of said narrowband signal at a predetermined time, and assign the respectively determined phase to one of a plurality of predetermined message symbols.

Description

technical field [0001] The invention relates to a method for the radio transmission of message symbols which are transmitted as broadband transmission signals via a UWB transmitter. UWB stands for the well-known ultra-wideband transmission (UWB-ultrawideband), as it is defined, for example, in the form also as standard IEEE 802.15.4a. The wideband transmission signal is thus produced by means of pulse phase modulation (English: PPM-pulse position modulation) and thus has a line spectrum with many modulated frequency lines. Pulse phase modulation is also called pulse position modulation corresponding to its English name. Also belonging to the invention is a system for radio transmission by means of ultra-wideband transmission and a receiver for this system. Background technique [0002] The following is based on figure 1 Describe pulse phase modulation in detail. Shown is a diagram in which a control signal s of a UWB transmitter is plotted over time t, via which control ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04B1/7163
CPCH04B1/71637H04B1/71H04L25/4902H04L27/2032
Inventor U·格伦策J·许特纳
Owner SIEMENS AG
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