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Mobile station device, base station device, radio communication method and communication program

A wireless communication and mobile station technology, applied in the field of communication programs, can solve the problems of TPC commands not working, undisclosed carrier unit transmission power, etc., and achieve the effect of efficient transmission power control

Active Publication Date: 2012-11-28
SHARP KK
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0017] However, in the prior art, there is a problem that a method of allocating a plurality of uplink component carriers to a mobile station apparatus and efficiently controlling the transmission power of each channel of the allocated uplink component carriers has not been disclosed.
More specifically, in the prior art, the TPC command for the uplink control channel contained in the downlink grant cannot indicate which uplink component carrier the TPC command for the uplink control channel is for
Therefore, there is a problem that the mobile station apparatus applies the TPC command for the uplink control channel included in the downlink grant to the uplink carrier to which the base station apparatus does not allocate radio resources for the uplink control channel. unit, thus the TPC commands contained in the downlink grant will have no effect

Method used

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  • Mobile station device, base station device, radio communication method and communication program
  • Mobile station device, base station device, radio communication method and communication program
  • Mobile station device, base station device, radio communication method and communication program

Examples

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no. 1 reference example

[0167] Hereinafter, the first reference example of the present invention will be described in detail with reference to the drawings.

[0168] In the above-mentioned embodiment, for the wireless communication system, one of the plurality of downlink carrier components allocated to the mobile station device a1 by the base station device b1 is set as the anchor downlink carrier component, and the set one is used The case where the transmission power control format is transmitted by the anchor downlink carrier unit is described. In this reference example, a plurality of uplink carrier components allocated to a mobile station device by a base station device are divided into multiple (L) groups, and the downlink carrier components are set as anchor downlink carriers for each group of uplink carrier components A description will be given of the case where the transmission power control format is transmitted using one or more anchor downlink carrier units set.

[0169] Comparing the wirel...

no. 2 reference example

[0197] Hereinafter, the second reference example of the present invention will be described in detail with reference to the drawings.

[0198] In the above-mentioned embodiment, for the wireless communication system, one of the plurality of downlink carrier components allocated to the mobile station device a1 by the base station device b1 is set as the anchor downlink carrier component, and the set one is used The case where the transmission power control format is transmitted by the anchor downlink carrier unit is described. In this reference example, a case where any one of a plurality of downlink carrier components allocated to a mobile station device by a base station device is used to transmit a transmission power control format will be described.

[0199] Comparing the wireless communication system according to this reference example with the wireless communication system according to the above-mentioned embodiment, the upper processing unit of the mobile station device and t...

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Abstract

The inventioin aims to efficiently control the transmission power of a plurality of uplink carrier components used for radio communication by a mobile station device and a base station device. The mobile station device communicates by radio with the base station device using a plurality of component carriers. The mobile station device receives, from the base station device, downlink control information that includes information indicating radio resource assignment to a downlink shared channel disposed in any of downlink component carriers of a downlink control channel, and a TPC command to an uplink control channel in an uplink component carrier in which ACK / NACK to the downlink shared channel is transmitted.

Description

Technical field [0001] The present invention relates to a mobile station device, a base station device, a wireless communication method, and a communication program. Background technique [0002] In the 3rd Generation Partnership Project (3GPP), the wireless access methods of cellular mobile communication and the evolution of wireless networks (hereinafter referred to as "Long Term Evolution (LTE)" or "Evolved Universal Terrestrial Radio Access" have been studied. (EUTRA)”), as well as wireless access methods and wireless networks that use wider frequency bands to achieve higher-speed data communication (hereinafter referred to as “LTE-Advanced (LTE-A)” or “Evolution-Advanced Universal Terrestrial wireless access (A-EUTRA)”) [0003] In LTE, as the downlink, an orthogonal frequency division multiplexing (OFDM) method, which is multi-carrier transmission, is used. In addition, as the uplink, a single carrier communication method that is an SC-FDMA (Single Carrier Frequency Divisio...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W52/08H04J1/00H04J11/00H04W28/06H04W72/04
CPCH04W52/248H04W52/146H04L5/001H04W72/042Y02B60/50H04L5/0091H04W52/34H04W52/325H04L5/0037H04L5/0053H04W52/58H04L5/0055H04W52/54Y02D30/70H04W72/23H04W52/32H04W72/0453H04W88/02H04W88/08H04W52/18
Inventor 铃木翔一山田升平上村克成中岛大一郎
Owner SHARP KK
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