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Cellular system, base station, mobile station, and communication control method

A technology for cellular systems and communication control, applied in transmission systems, wireless communications, digital transmission systems, etc., can solve the problems of reduced channel inference accuracy, consumption of transmitted signals, etc.

Inactive Publication Date: 2008-11-26
NEC CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, it has the disadvantage of consuming an excessive amount of transmitted signal
In addition, when TPC-HS is transmitted instead of normal TPC, the power of HS-DPCCH increases and interference occurs, and as a result, there is a disadvantage that the channel estimation accuracy of DPCCH of other channels decreases

Method used

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  • Cellular system, base station, mobile station, and communication control method
  • Cellular system, base station, mobile station, and communication control method
  • Cellular system, base station, mobile station, and communication control method

Examples

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Embodiment Construction

[0072] First to fifth embodiments of the present invention will be described below with reference to the drawings. Fig. 1 is an outline schematic diagram of an example of a cellular system to which the first to fifth embodiments of the present invention are applicable. Referring to this figure, a cellular system includes a base station 1, a base station 2, and mobile stations 3, 4, 5. Furthermore, base station 1 and base station 2 are installed in different cells. In addition, in this example, although the case where there are two base stations 1, 2 for three mobile stations 3, 4, 5 has been described, it is not limited to this, and the same applies to three mobile stations 3, 4, 5. There are three or more base stations in stations 3, 4, and 5. In general, there are multiple mobile stations with respect to one base station.

[0073] In addition, the present invention is also applicable to the case where there are four or more mobile stations in the transmission system, and ...

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Abstract

The invention provided cellular system, base station and mobile station and communication control method. The cellular system comprises a mobile station and several base stations which are in a soft handoff state with the mobile station and set up and down special channels with the mobile station. One of the several base stations serves as a grouping transmission base station and transmits a grouping to the mobile station via a sharing channel. The mobile station comprises a device which controls receiving quality of transmission power control signals transmitted from the grouping transmission base station and contained in a down special channel by controlling interference ratio of target signal received by the down special channel; and a device for generating transmission power control signals of the down special channel.

Description

[0001] This application is a divisional application based on the invention with application number 03807558.X and application date of April 3, 2003, entitled "cellular system, base station and mobile station, and communication control method". technical field [0002] The present invention relates to a cellular system, a base station and a mobile station, and a communication control method. Background technique [0003] Conventionally, various systems have been proposed for such a cellular system. Recently, as one of such cellular systems, a high-speed downlink packet access (HSDPA: High-Speed ​​Downlink Packet Access) cellular system has been proposed by 3GPP (Third Generation Partnership Project). [0004] Hereinafter, a cellular system for performing packet communication will be described by taking the aforementioned cellular system of the HSDPA scheme as an example, but the present invention is not limited to HSDPA. [0005] In the HSDPA method, high-speed data is trans...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04Q7/38H04L12/56H04B7/005H04Q7/32H04W52/14H04W36/18H04W52/08H04W52/36H04W52/40H04W52/48
Inventor 高野奈穗子滨边孝二郎
Owner NEC CORP
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