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

• US 7,873,389 B2
• Filed: 09/11/2007
• Issued: 01/18/2011
• 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:
  US11/898,287
• Publication Number:
  US 20080176522A1
• Time in Patent Office: 1,225 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 communication method comprising:

receiving a connection request from a radio terminal apparatus; and

transmitting a multiple-field frame to the radio terminal apparatus which has sent the connection request, wherein (1) a single bit indicating a reception operation adapted to a transmission operation of a radio base station apparatus and (2) data are respectively contained in mutually different fields of the multiple-field frame.

2. A communication method according to claim 1, 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 multiple-field 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.

3. A communication method according to claim 1, wherein the receiving step includes receiving the connection request by a plurality of antennas, and the transmitting step includes transmitting the multiple-field frame by the plurality of antennas.