Radio base station apparatus, radio terminal apparatus, mobile communication system, and reception operation control program

• US 7,881,751 B2
• Filed: 10/31/2007
• Issued: 02/01/2011
• Est. Priority Date: 08/06/2001
• Status: Expired due to Fees

• Current Assignee: Hera Wireless S.A. (Fineur International S.A.)
• Original Assignee: Sanyo Electric Company Limited (Panasonic Holdings Corporation)
• Inventors: Doi, Yoshiharu, Nakao, Seigo, Miyata, Takeo, Ito, Tadayoshi
• Primary Examiner(s): WASHINGTON, ERIKA ALISE
• Application Number:
  US11/980,607
• Publication Number:
  US 20080070634A1
• Time in Patent Office: 1,189 Days
• Field of Search: None
• US Class Current: 455/561
• CPC Class Codes: H04B 7/0617 for beam forming
• CPC Class Codes: H04B 7/0848 Joint weighting
• CPC Class Codes: H04B 7/086 using weights depending on external parameters, e.g. direction of arrival [DOA], predetermined weights or beamforming
• CPC Class Codes: H04W 16/28 using beam steering
• CPC Class Codes: H04W 72/02 Selection of wireless resources by user or terminal
• CPC Class Codes: H04W 72/20 Control channels or signalling for resource management

Abstract

In response to a connection request from a terminal, a base station provides a signal indicating a reception operation adapted to a transmission operation of the base station to the terminal. Based on the indicating signal, the terminal selects and performs the optimum reception operation. The terminal also provides its own reception operation information in advance to the base station. Based on the reception operation information, the base station transmits a reception operation indication to the terminal. These processes are realized with software by DSP (12, 14) and the like.

Claims

1. A radio terminal apparatus for receiving a frame from a radio base station apparatus, the radio terminal apparatus comprising:

a receiver for receiving the frame from the radio base station apparatus, the frame including (1) a single bit indicating a reception operation adapted to a transmission operation of the radio base station apparatus and (2) data; and

a processor for performing the reception operation based on the single bit,

wherein the single bit has a first value specifying a first reception operation or a second value specifying a second reception operation, the single bit instructing the radio terminal apparatus to accept the frame only in a prescribed manner determined by the first or second value and adapted to a corresponding transmission operation of the radio base station apparatus.

2. A radio terminal apparatus for receiving a multiple-field frame from a radio base station apparatus, the radio terminal apparatus comprising:

a receiver for receiving the multiple-field frame from the radio base station apparatus wherein control information and first data are respectively contained in mutually different fields in the multiple-field frame, and the control information contains (1) a single bit indicating a reception operation adapted to a transmission operation of the radio base station apparatus and (2) second data for communication control; and

a processor for performing the reception operation based on the single bit.

3. A radio terminal apparatus for receiving a multiple-field frame from a radio base station apparatus, the radio terminal apparatus comprising:

a receiver for receiving the multiple-field frame from the radio base station apparatus, wherein (1) a single bit indicating a reception operation adapted to a transmission operation of the radio base station apparatus and (2) data are respectively contained in mutually different fields of the multiple-field frame; and

a processor for performing the reception operation based on the single bit.

4. A radio terminal apparatus for receiving a multiple-field frame from a radio base station apparatus, the radio terminal apparatus comprising:

a receiver for receiving the multiple-field frame from the radio base station apparatus, wherein

one of multiple-fields contains (1) a single bit indicating a reception operation adapted to a transmission operation of the radio base station apparatus and (2) first data for communication between the radio base station and the radio terminal apparatus, and

another one field contains second data other than the first data; and

a processor for performing the reception operation based on the single bit.