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Mobile communication device and mobile communication system

一种移动通信装置、数据通信的技术，应用在移动通信技术领域，能够解决无法直接应用等问题，达到满意度高的效果

Inactive Publication Date: 2010-10-06
HITACHI LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The transmission mode of the 1×EVDO system is CDMA, so it cannot be directly applied in the OFDM system

Method used

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  • Mobile communication device and mobile communication system
  • Mobile communication device and mobile communication system
  • Mobile communication device and mobile communication system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0032] Hereinafter, the present invention will be described in detail based on embodiments of the invention with reference to the drawings.

[0033] figure 1 It is a diagram showing the overall configuration of the mobile communication system.

[0034] Within the coverage of a base station (BS: Base Station) 101 there are terminals (MS: Mobile Station) 1 102 , MS2 103 , and MS99 104 . The terminal MS1 102 can communicate with the terminals MS100 106 within the range covered by other base stations via the base station 101 and the public network 105 .

[0035] figure 2 It is a figure showing the hardware structure of the receiver of a base station.

[0036]The receiver of the base station is composed of the following parts: the antenna 201 that receives the wireless signal; the RF receiving unit 202 that converts the high-frequency signal into a baseband signal by performing A / D conversion on the received wireless signal; The baseband signal processing section 203 for signa...

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PUM

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Abstract

A base station includes a unit that, in response to a request from a terminal to activate an application, calculates the data communication speed based on a communication quality index received from the terminal; a unit that performs the statistical calculation of traffic sent to terminals; a unit that calculates the statistical value of the number of free resource blocks; a unit that calculates the estimated continuation time of the data communication speed, calculated by the data communication speed calculation unit, from the statistical value of free resource blocks calculated by the free resource blocks conversion unit; and a unit that sends the data communication speed and the continuation time to the terminal, and each terminal displays the data communication speed and the continuation time, sent from the mobile communication device, on a display unit and, based on the selection result of a user, controls the connection of the application.

Description

technical field [0001] The present invention relates to mobile communication technology, in particular to a mobile communication technology using Orthogonal Frequency Division Multiplexing (hereinafter referred to as OFDM: Orthogonal Frequency Division Multiplexing) as a transmission method in a wireless section. Background technique [0002] In the field of mobile communication, due to the expansion of Internet usage, the demand for data communication including high-speed Web access, music, and images is increasing, and researches to achieve high-speed and wide-band are rapidly progressing. As a representative of the third generation mobile communication system, there is a 1*EV-DO (1*Evolution Data Optimized) system. In the 1×EV-DO system, a code division multiple access (CDMA: Code Division Multiple Access) method is adopted as a transmission method in a wireless section. In 1×EV-DO Rev.A (Revision A), which is currently being commercialized, communication of uplink 1.8 M...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W8/20H04W24/08H04W72/08
CPCH04L5/0044H04L5/0091H04W72/04H04L5/0053
Inventor 许丹
Owner HITACHI LTD