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Radio reception apparatus, signal processing timing control method, and signal processing timing control program

一种无线接收装置、接收信号的技术，应用在增益控制、放大的控制、调制载波系统等方向，能够解决振幅值不正确、接收错误等问题，达到防止接收错误的效果

Inactive Publication Date: 2005-05-11
KYOCERA CORP
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  • Abstract
  • Description
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Problems solved by technology

[0018] However, in mobile communication systems such as PHS, in order to ensure the transmission data capacity, known signal intervals such as PR and UW are limited to a short interval of several symbols in the header of each frame by the signal format standard. There is a problem that, in the case of using a multi-value modulation method such as the 16QAM method, if Image 6 As shown, in a large interval within the known signal interval, the amplitude value is incorrect, so that reception errors will occur during digital signal processing

Method used

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  • Radio reception apparatus, signal processing timing control method, and signal processing timing control program
  • Radio reception apparatus, signal processing timing control method, and signal processing timing control program
  • Radio reception apparatus, signal processing timing control method, and signal processing timing control program

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Embodiment Construction

[0045] Embodiments of the present invention will be described in detail below with reference to the drawings. The same symbols are assigned to the same or corresponding parts in the drawings, and the description thereof will not be repeated.

[0046] figure 1 It is a functional block diagram showing the configuration of a wireless receiving apparatus applied to a base station of a mobile communication system such as PHS based on an embodiment of the present invention. In the embodiments described below, it is assumed that well-known 16QAM is used as a multilevel modulation scheme.

[0047] In addition to the following sections, figure 1 The wireless receiving device shown is compatible with Figure 5 The conventional wireless receiver shown is the same. That is, the AGC control unit 16 except Figure 5 In addition to the AGC control signal generation operation of the AGC control unit shown, a signal indicating the progress of the interval to be removed from the header por...

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Abstract

In a wireless receiving device, an AGC control unit (16) adjusts a variable gain of a receiving amplifier (2) for each frame of a received signal, and executes an AGC operation. The AGC control unit (16) determines the AGC operation end time and notifies the digital signal processing unit (15). A digital signal processing unit (15) performs predetermined signal processing on a digital signal obtained after the AGC operation is completed within a known signal interval. This prevents reception errors from occurring due to incorrect amplitude values ​​of digital signals based on AGC operations.

Description

technical field [0001] The present invention relates to a wireless receiving device, a signal processing timing control method, and a signal processing timing control program, and in particular to a wireless receiving device, a signal processing timing control method used in a mobile communication system such as a base station that requires high communication quality such as data communication. A control method and a timing control program for signal processing. Background technique [0002] Conventionally, automatic gain control (Automatic Gain Control: AGC) has been widely used in wireless receiving apparatuses in order to converge the level of a received signal to a desired level. Figure 5 It is a schematic block diagram showing the configuration of a wireless receiving device used in a mobile communication system (base station or mobile station thereof) such as PHS (Personal Handyphone System) as an example of a conventional wireless receiving device using AGC. [0003]...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H03G3/20H03G3/30H04B1/16H04L27/08H04L27/22H04L27/38
CPCH03G3/3052H03G3/3078H04L27/08H04L27/3809
Inventor 岩见昌志河合克敏
Owner KYOCERA CORP
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