Electric power display and signal analyzer of communication signal
A communication signal and power technology, which is applied in the field of signal analyzers, can solve problems such as difficult to understand the relationship between communication signals of multiple channels, difficult to see communication signals, etc.
Inactive Publication Date: 2009-06-10
TEKTRONIX INT SALES GMBH
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- Description
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- Application Information
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Problems solved by technology
Unfortunately, however, it is difficult to understand the relationship between communication signals of multiple channels
Specifically, it is difficult to see how each of the multiple channels uses power out of the total power of the communication signal, and how they vary over time
Method used
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[0021] Embodiments of the present invention will be described in more detail below with reference to the accompanying drawings. FIG. 2 is a functional block diagram of a wireless signal analysis system using a signal analyzer according to the present invention. To implement the present invention, existing signal analyzer hardware can be used. The signal analyzer 14 has functions and hardware similar or equivalent to those of a personal computer. Although not shown, a personal computer employing a general-purpose CPU is capable of storing a large amount of data using a hard disk drive (HDD), and performing various settings through a graphical user interface using a keyboard and a mouse. The present invention can be realized by installing the application software realizing the function of the present invention in the existing signal analyzer.
[0022] image 3 is a flowchart showing exemplary processing for realizing display according to an embodiment of the present invention...
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In order to easily understand the relationship between communication signals of a plurality of channels, a signal analyzer provides a display showing a stacked bar graph 100 that stacks powers of the plurality of channels in every time slot with the horizontal axis representing time. A marker 110 is displayed on the graph 100 and parameter information in the time slot corresponding to the display position of the marker 110 is also displayed in a table 112. If the display position of the marker 110 may change and the parameter information for the time slot is not displayed in the table 112, the display range of the parameters in the table 112 is changed in synchronism with the displayed marker position. Additionally, power related information of each channel in the time slot corresponding to the display position of the marker 110 may also be displayed in a display column 118.
Description
Background technique [0001] Embodiments of the present invention generally relate to a display for measuring the state of a communication signal and a signal analyzer, and more particularly to a method that enables easy measurement of power versus time between multiple channels of a multiplexed communication signal display and a signal analyzer with such a display. [0002] Communication signals used in a W-CDMA type cellular phone system or the like are transmitted and received by multiplexing signals of a plurality of channels using a single carrier. A known signal analyzer for observing and measuring the state of such communication signals is, for example, a wireless communication analyzer model WCA 200A, available from Tektronix in the United States. This wireless communication analyzer includes spectrum analyzer-based hardware combined with a general-purpose basic software operating system (OS) developed for personal computers, and multiple application software operating...
Claims
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IPC IPC(8): H04B17/00H04B1/707G01R21/00H04J13/00H04W24/00H04W24/06
CPCH04B17/0065H04B17/0045H04B17/23H04B17/327H04J13/00H04W24/08
Inventor K·塞加K·奥加塔
Owner TEKTRONIX INT SALES GMBH