Radio communication system

Abstract

PROBLEM TO BE SOLVED: To provide a conceptual expression generation technique capable of extracting conceptual information expressing the content of a text from the test and realizing a conceptual expression easily understandable and operable by a user.SOLUTION: This conceptual expression generation system for generating the conceptual expression of the text that is an object comprises a language analysis part 2 for performing a language analysis including morphological analysis and paragraph modification analysis to the text; a text data structure generation part 4 for converting the text to a text data structure having paragraph information including notation, word class and modification information of constituting words based on the language analysis result by the language analysis part 2; an intention expression setting part 6 for adding, when the notation of words constituting the paragraph information of the text data structure and the arrangement of word classes are matched to a specified expression pattern, an intention expression stored in conformation to this expression pattern to the paragraph information of the text data structure in conformation thereto; and a conceptual expression generation part 8 for generating the conceptual expression by use of the added intention expression.

Description

technical field [0001] The present invention relates to a radio communication system having a mobile station device, a base station device and a base station control device, and using an adaptive modulation method. Background technique [0002] Hitherto, in radio communication systems using WCDMA (Wideband Code Division Multiple Access), a technique for performing packet extension—called HSDPA (High Speed ​​Downlink Packet Access)—has been standardized work has progressed. In this radio communication system, communication is performed on a traditional WCDMA channel—called DPCH (Dedicated downlink Physical Channels, dedicated downlink physical channels), and a high-speed channel—called HSDSCH (High Speed ​​Downlink Shared Channel, high speed downlink shared channel)—the outbound reception is performed in parallel at the same time. [0003] In this HSDSCH channel, a technique called adaptive modulation is used so that the modulation method and coding rate are changed accordi...

AI Technical Summary

Problems solved by technology

[0007] However, in the conventional radio communication system disclosed in Unexamined Japanese Patent Publication No. 2002-232943, there is a problem that if mobile terminal devices supporting HSDPA are widely distributed in the area covered by the base station device, when the base station device uses When HSDPA compensates for the minimum throughput of all mobile station equipment, the time required to allocate HSDPA to mobile station equipment far away from the base station equipment becomes very long. The HSDPA time period of the nearby mobile station equipment is very small, and the mobile station equipment must also periodically send the CQI value. Therefore, because the mobile station equipment is far away from the base station equipment, there is a serious waste of power

[0008] On the other hand, the above-mentioned conventional radio communication system has a problem in that since the HS-SCCH—a physical channel that transmits a control signal including a modulation method, an information bit length, and the number of multiplexing codes to a mobile station device that is a data transmission target—is Transmissions from a single base station device, as in the case of HSDPA, do not have soft handoffs, so extremely high power must be used for transmissions from the base station device to distant mobile station devices at the edge of the cell, so that when the base station device frequently When HSDPA is allocated to mobile station devices at the edge of the cell, the ratio of control channel power to total transmission power is high, resulting in low overall system throughput

Images