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Wireless communication system, mobile station device, base station device, wireless communication method, and integrated circuit

A wireless communication system and wireless communication technology, applied in wireless communication, transmission system, multiplexing communication, etc., can solve the problem that periodic SRS and aperiodic SRS transmission power cannot be individually controlled

Active Publication Date: 2012-09-26
SHARP KK
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0016] In this way, if the transmission power of SRS is controlled using the conventional formula (1), there is a problem that the transmission power of periodic SRS and aperiodic SRS cannot be individually controlled.

Method used

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  • Wireless communication system, mobile station device, base station device, wireless communication method, and integrated circuit
  • Wireless communication system, mobile station device, base station device, wireless communication method, and integrated circuit
  • Wireless communication system, mobile station device, base station device, wireless communication method, and integrated circuit

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no. 1 Embodiment approach

[0064] Next, a first embodiment of the present invention will be described in detail with reference to the drawings.

[0065]

[0066] figure 1 It is a conceptual diagram of the wireless communication system of the present invention. exist figure 1 Here, the wireless communication system includes mobile station devices 1A to 1C and a base station device 3 . figure 1 It shows that a synchronization channel (Synchronization Channel; SCH), a downlink pilot channel (or also referred to as a "downlink reference channel") is allocated in wireless communication (downlink) from the base station apparatus 3 to the mobile station apparatuses 1A to 1C. Signal (Downlink Reference Signal; DL RS)".), broadcast channel (Physical Broadcast Channel; PBCH), downlink control channel (Physical Downlink Control Channel; PDCCH), downlink shared channel (Physical Downlink Shared Channel; PDSCH), A multicast channel (Physical Multicast Channel; PMCH), a control format indicator channel (Physical...

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Abstract

Disclosed is a wireless communication system wherein optimum transmission power control is performed with respect to a periodic SRS and an aperiodic SRS. In the system, a mobile station device (1) transmits first reference signals or second reference signals to a base station device (3). The base station device (3) notifies the mobile station device (1) of first parameters to be used for the purpose of setting transmission power with respect to transmission of the first reference signals, and second parameters to be used for the purpose of setting transmission power with respect to transmission of the second reference signals. The mobile station device (1) sets the transmission power with respect to the transmission of the first reference signals using the first parameters, and also sets the transmission power with respect to the transmission of the second reference signals using the second parameters.

Description

technical field [0001] The present invention relates to a wireless communication system, a base station device, a mobile station device, a wireless communication method, and an integrated circuit in which a reference signal (Sounding Reference Signal, SRS) for uplink channel measurement is transmitted from a mobile station device to a base station device . Background technique [0002] Conventionally, in the 3rd Generation Partnership Project (3rd Generation Partnership Project; 3GPP), wireless access schemes using cellular mobile communications and evolution of wireless networks (hereinafter referred to as "Long Term Evolution (LTE)" or "LTE Evolution") have been studied. Universal Terrestrial Radio Access (EUTRA)", and a wireless access method and wireless network that further realize high-speed data communication with a broadband wider than LTE (hereinafter referred to as "Long Term Evolution-Advanced (LTE-A) )", or, "Advanced Evolved Universal Terrestrial Radio Access (...

Claims

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Application Information

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IPC IPC(8): H04W52/32H04J1/00H04J11/00H04B1/3822H04B1/40H04W72/04
CPCH04W52/146H04W52/325H04L5/0048H04W52/22H04W52/248
Inventor 铃木翔一大内涉中岛大一郎
Owner SHARP KK