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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 the directions of wireless communication, transmission system, multiplexing communication, etc., can solve the problem of inability to individually control the transmission power of periodic SRS and aperiodic SRS

Active Publication Date: 2015-12-16
SHARP KK
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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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 "downlink reference signal (DownlinkReferenceSignal; DLRS)".), broadcast channel (PhysicalBroadcastChannel; PBCH), downlink control channel (PhysicalDownlinkControlChannel; PDCCH), downlink shared channel (PhysicalDownlinkSharedChannel; PDSCH), multicast channel (PhysicalMulticastChannel; PMCH), control format Indicator channel (PhysicalControlFormatIndicatorChannel; PCFICH), HARQ indicator channel (PhysicalHybridARQIndicatorChannel; PHICH).

[0067] in addition, figure 1 It is shown that ...

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Abstract

The present invention provides a wireless communication system, a mobile station device, a base station device, a wireless communication method and an integrated circuit. The most appropriate transmit power control is performed for each SRS of periodic SRS and non-periodic SRS. In a wireless communication system in which the mobile station apparatus (1) transmits a reference signal or a reference signal no. 2 to the base station apparatus (3), the base station apparatus (3) notifies the 1st parameter and the 2nd parameter to the mobile station apparatus (1), the 1st parameter is used to set the transmission power corresponding to the 1st reference signal, the 2nd parameter is used to set the transmission power corresponding to the 2nd reference signal, the mobile station apparatus (1) uses the 1st parameter to set the transmission power corresponding to the 1st reference signal, on the other hand, Using parameter 2 is used to set the transmission power corresponding to the transmission of the reference signal 2.

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] In the past, in the 3rd Generation Partnership Project (3rdGenerationPartnershipProject; 3GPP), the evolution of wireless access methods and wireless networks using cellular mobile communications (hereinafter referred to as "Long Term Evolution (LTE)", or "Evolved Universal Terrestrial Wireless Access (EUTRA)".), and a wireless access method and a 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 (A-EUTRA)".). [0003] In...

Claims

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Application Information

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Patent Type & Authority Patents(China)
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