Wireless Communication System

• US 20100303017A1
• Filed: 08/04/2010
• Published: 12/02/2010
• Est. Priority Date: 04/30/2004
• Status: Abandoned Application

• Current Assignee: Seiichi Sanpei, Yoshiteru Matsushita
• Original Assignee: Seiichi Sanpei, Yoshiteru Matsushita
• Inventors: Sanpei, Seiichi, MATSUSHITA, Yoshiteru
• Application Number:
  US12/850,507
• Publication Number:
  US 20100303017A1
• Time in Patent Office: Days
• US Class Current: 370/328
• CPC Class Codes: H04L 1/0003 by switching between different modulation schemes
• CPC Class Codes: H04L 27/2602 Signal structure
• CPC Class Codes: H04L 27/2647 Arrangements specific to the receiver only equalisation H04L27/01

Abstract

Improvement of transmission efficiency is sought by stopping transmission of unnecessary MLI data. A transmitting circuit 111 in a base station apparatus 110 has an MLI modulation part 248 composed of an MLI generating circuit 238, a symbol modulation circuit 239, and an IFFT circuit 240, a user data modulation part 249 composed of an encoder circuit 234, a symbol modulation circuit 235, a transmission power control circuit 236, and an IFFT circuit 237, and a transmission operation control circuit 113. The transmission operation control circuit 113 controls operation timing of the MLI modulation part 248, the user data modulation part 249, and a multiplexer 243 based on a signal to notify that ACK input from a receiving circuit 112 has been received so that slots containing no MLI data are generated.

Claims

1. A mobile station apparatus in a system in which a base station apparatus transmits, to the mobile station apparatus, a slot capable of transmitting user data and control information necessary for reception processing of the user data,

wherein information indicating a slot containing no control information is received, and

the reception processing of the user data of the slot containing no control information is performed based on previously received control information.

2. A mobile station apparatus in a system in which a base station apparatus transmits, to the mobile station apparatus, a slot capable of transmitting user data and control information necessary for reception processing of the user data,

wherein, when a received slot does not contain the control information, the reception processing of the user data is performed based on previously received control information.

3. A base station apparatus in a system in which the base station apparatus transmits, to a mobile station apparatus, a slot capable of transmitting user data and control information necessary for reception processing of the user data,

wherein information indicating a slot containing no control information is transmitted, and

the transmission processing of the user data of the slot containing no control information is performed based on previously notified control information.

4. A method of processing a signal in a mobile station apparatus in a system in which a base station apparatus transmits, to the mobile station apparatus, a slot capable of transmitting user data and control information necessary for reception processing of the user data,

wherein information indicating a slot containing no control information is received, and

the reception processing of the user data of the slot containing no control information is performed based on previously received control information.

5. A method of processing a signal in a mobile station apparatus in a system in which a base station apparatus transmits, to the mobile station apparatus, a slot capable of transmitting user data and control information necessary for reception processing of the user data,

wherein, when a received slot does not contain the control information, the reception processing of the user data is performed based on previously received control information.

6. A method of processing a signal in a base station apparatus in a system in which the base station apparatus transmits, to a mobile station apparatus, a slot capable of transmitting user data and control information necessary for reception processing of the user data,

wherein information indicating a slot containing no control information is transmitted, and

the transmission processing of the user data of the slot containing no control information is performed based on previously notified control information.