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Mobile station device, base station device, wireless communication method, and integrated circuit

A technology for wireless communication and mobile station, applied in the directions of wireless communication, multiplexing communication, transmission path separation device, etc., can solve the problems such as TPC command not working, undisclosed carrier unit transmission power, etc., to achieve efficient transmission power the effect of the control

Active Publication Date: 2016-01-20
SHARP KK
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0016] 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, wireless communication method, and integrated circuit
  • Mobile station device, base station device, wireless communication method, and integrated circuit
  • Mobile station device, base station device, wireless communication method, and integrated circuit

Examples

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no. 1 reference example

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

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

[0169] Comparing the wireless communication system according to this refere...

no. 2 reference example

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

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

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

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Abstract

The present invention aims at efficiently controlling the transmission power of a plurality of uplink carrier components used in wireless communication by a mobile station apparatus and a base station apparatus. A mobile station device performs wireless communication with a base station device using a plurality of component carriers. The mobile station apparatus receives downlink control information from the base station apparatus. The downlink control information includes: information indicating radio resource allocation of a downlink shared channel configured in any downlink component carrier; A TPC command of a link control channel, which is an uplink control channel of an uplink component carrier for transmitting ACK / NACK for a downlink shared channel.

Description

technical field [0001] The present invention relates to a mobile station device, a base station device, a wireless communication method, and an integrated circuit. Background technique [0002] In the 3rd Generation Partnership Project (3GPP), the wireless access methods of cellular mobile communications and the evolution of wireless networks (hereinafter referred to as "Long Term Evolution (LTE)", or "Evolved Universal Terrestrial Radio Access (EUTRA)"), and 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 "LTE-Advanced Terrestrial Radio Access (A-EUTRA)") In LTE, an Orthogonal Frequency Division Multiplexing (OFDM) scheme that is multi-carrier transmission is used as a downlink. In addition, as the uplink, a single-carrier communication method of the SC-FDMA (Single-Carrier Frequency Division Multiple Access) method, which is single-carrier transmi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W52/08H04J1/00H04J11/00H04W28/06H04W72/04
CPCH04L5/001H04L5/0037H04L5/0091H04W52/248H04W52/34H04W52/58H04L5/0053H04W52/146H04W52/325H04L5/0055H04W52/54Y02D30/70H04W72/23H04W52/32H04W72/0453H04W88/02H04W88/08H04W52/18
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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