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

A communication control and mobile station technology, applied in wireless communication, power management, electrical components, etc., can solve the problems of reduced channel estimation accuracy, consumption of transmitted signals, etc.

Inactive Publication Date: 2013-07-24
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

Immediately before transmitting a packet signal, a packet transmission base station (BS1) increases a target SIR of UL DPCH (S12), increases the TPC transmission power transmitted by the DL DPCH (S13), increases a power balancing reference power, and increases a DL DPCH transmission power (S14). In a mobile station (MS3), during packet reception, only a packet transmission base station (1) controls the UL DPCH transmission power (S15). This improves the reception quality at the base station (1) of HS-DPCCH including ACK / NACK and reduces the error ratio of the ACK / NACK signal.

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 Patents(China)
IPC IPC(8): H04W52/40H04W52/48H04W52/14H04W36/18H04W52/08H04W52/36
Inventor 高野奈穗子滨边孝二郎
Owner NEC CORP
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