A terminal unit, a base station device, and a correspondence procedure

Title:

A terminal unit, a base station device, and a correspondence procedure

Document Type and Number:

Japanese Patent JP6101980

Kind Code:

B2

Abstract:

In a system including at least one base station device, the base station device efficiently controls uplink signals. A mobile station device includes a path loss calculation unit 4051 configured to calculate path losses, each based on one of a plurality of types of reference signals received by a reception processing unit 401, a transmit power setting unit 4053 configured to set a desired transmit power for an uplink signal using the path losses calculated by the path loss calculation unit 4051, and a power headroom control unit 4055 configured to generate a power headroom using the desired transmit power set by the transmit power setting unit 4053, the power headroom being information concerning transmit power to spare, and configured to control transmission of the power headroom. The power headroom control unit 4055 independently controls a power headroom transmission process that uses each of the path losses calculated based on the plurality of types of reference signals, using an independent parameter for each power headroom transmission process.

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Inventors:

Daiichiro Nakajima
Wataru Ouchi
Shoichi Suzuki
Kimihiko Imamura
Yousuke Akimoto
Uemura Katsunari
Yasuyuki Kato

Application Number:

JP2012192315A

Publication Date:

March 29, 2017

Filing Date:

August 31, 2012

Export Citation:

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Assignee:

Sharp Corporation

International Classes:

H04W28/16; H04W24/10

Domestic Patent References:

JP2011097224A
JP2011009866A

Foreign References:

WO2011063244A2

Other References:

Research In Motion, UK Limited,PRACH Enhancement and UL Power Control for CoMP Scenario 4[online], 3GPP TSG-RAN WG1#66 R1-112372,インターネット,2011年 8月16日
ASUSTeK,Discussion on Extended Power Headroom MAC Control Element[online], 3GPP TSG-RAN WG2#72bis R2-110366,インターネット,2011年 1月

Attorney, Agent or Firm:

Nishizawa Kazumi
Masao Miki
Susumu Nomura
Koji Kata

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