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

• US 20060154618A1
• Filed: 03/15/2006
• Published: 07/13/2006
• Est. Priority Date: 08/06/2001
• Status: Active Grant

• Current Assignee: Hera Wireless S.A. (Fineur International S.A.)
• Original Assignee: Sanyo Electric Company Limited (Panasonic Holdings Corporation)
• Inventors: Ito, Tadayoshi, Nakao, Seigo, Miyata, Takeo, Doi, Yoshiharu
• Granted Patent: US 7,454,234 B2
• Time in Patent Office: Days
• US Class Current: 455/78
• 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

1-50. -50. (canceled)

51. A radio base station apparatus to which a radio terminal apparatus can connect, the apparatus comprising:

a receiver which accepts a connection request from the radio terminal apparatus; and

a transmitter which transmits, to the radio terminal apparatus that has received the connection request, a signal indicating a reception operation adapted to a transmission operation having transmission directivity or a reception operation adapted to a transmission operation having no transmission directivity wherein the transmission operation having transmission directivity and the transmission operation having no transmission directivity are defined as transmission operations of said radio base station apparatus.

52. A radio base station apparatus according to claim 51, further comprising a plurality of antennas,

wherein said receiver accepts the connection request by the plurality of antennas, and

wherein said transmitter transmits the signal from the plurality of antennas.

53. A radio base station apparatus according to claim 51, wherein said transmitter transmits the signal to a radio terminal apparatus which is to execute adaptive array reception.

54. A radio base station apparatus to which a radio terminal apparatus can connect, the apparatus comprising:

a receiver which accepts a connection request from the radio terminal apparatus; and

a transmitter which transmits, to the radio terminal apparatus that has received the connection request, a signal indicating a reception operation adapted to a transmission operation having transmission directivity based on channel information or a reception operation adapted to the other transmission operation wherein the transmission operation having transmission directivity based on channel information and the other transmission operation are defined as transmission operations of said radio base station apparatus.

55. A radio base station apparatus according to claim 54, further comprising a plurality of antennas,

wherein said receiver accepts the connection request by the plurality of antennas, and

wherein said transmitter transmits the signal from the plurality of antennas.

56. A radio base station apparatus according to claim 54, wherein said transmitter transmits the signal to a radio terminal apparatus which is to execute adaptive array reception.