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Transmission apparatus, transimission control method, reception apparatus, and reception control method

A technology of sending equipment and receiving equipment, applied in the direction of transmission control/equalization, modulation carrier system, signaling feature, etc., can solve problems such as useless power consumption

Inactive Publication Date: 2004-02-18
SONY CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Furthermore, at the base station, even if there is no user data to be transmitted to the terminal, sending a mode request message from the terminal to the base station causes useless power consumption

Method used

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  • Transmission apparatus, transimission control method, reception apparatus, and reception control method
  • Transmission apparatus, transimission control method, reception apparatus, and reception control method
  • Transmission apparatus, transimission control method, reception apparatus, and reception control method

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Embodiment Construction

[0107] Figure 8 A configuration example of an embodiment of a communication system applicable to the present invention (a system refers to a collection of multiple devices, regardless of whether the components of the devices are in the same housing) is shown.

[0108] Figure 8 The communication system of ® is composed of a base station 101 and a terminal 102 such as a mobile phone, and data is communicated between the base station 101 and the terminal 102 by wireless communication.

[0109] here, in Figure 8 In the embodiment, only one base station 101 and terminal 102 are described respectively, but the communication system may also be composed of multiple base stations or terminals.

[0110] Figure 9 show Figure 8 An example of the configuration of the base station 101. In the figure here, corresponding to figure 2 The parts are assigned the same number, and their descriptions are omitted below as appropriate.

[0111] Such as Figure 9 As shown, the base stati...

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Abstract

Radio resources are saved. The base station 101 determines a possibility of transmitting data to the terminal 102, and transmits the indicator indicating the possibility of transmitting the data to the terminal 102. The terminal 102 generates a mode request message for determining a coding rate and a modulation system at the base station 101, and sets a transmission frequency of the mode request message based on the indicator transmitted from the base station 101. Accordingly, the mode request message is transmitted from the terminal 102 to the base station 101 at the determined transmission frequency.

Description

technical field [0001] The present invention relates to a sending device and a sending control method, and to a receiving device and a receiving control method. More particularly, the present invention relates to a transmission device and a transmission control method in, for example, a portable telephone system, which can save radio resources and enable low power consumption of a portable telephone, and to a reception device and a reception control method. Background technique [0002] A communication system with adaptive modulation and coding rate, according to the quality of the propagation path, by changing the coding rate of the error correction code and the degree of multi-level modulation, while sacrificing the anti-noise characteristics, a high-speed communication is displayed to the user. A user has a high-quality propagation path, and while maintaining anti-noise characteristics, a low-rate communication is displayed to the user, and the user only has a low-quality...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04B7/005H04L1/00H04L1/16H04L1/18
CPCH04L1/0027H04L1/0001H04L1/0025H04L1/1692H04L1/1816H04L1/1607H04L1/0009H04W52/54H04L1/0003H04W52/24H04L1/1671H04W52/08H04L1/00
Inventor 伊东克俊
Owner SONY CORP