BASE STATION EQUIPMENT

• US 20090253461A1
• Filed: 01/26/2009
• Published: 10/08/2009
• Est. Priority Date: 04/04/2008
• Status: Active Grant

• Current Assignee: Hitachi, Ltd.
• Original Assignee: Hitachi, Ltd.
• Inventors: Kuwahara, Mikio
• Granted Patent: US 8,160,589 B2
• Time in Patent Office: Days
• US Class Current: 455/561
• CPC Class Codes: H04W 24/02 Arrangements for optimising operational condition
• CPC Class Codes: H04W 36/08 Reselecting an access point
• CPC Class Codes: H04W 36/302 due to low signal strength
• CPC Class Codes: H04W 48/14 using user query or user detection
• CPC Class Codes: H04W 52/0206 in access points, e.g. base stations access point devices per se H04W88/08
• CPC Class Codes: H04W 84/105 PBS [Private Base Station] network H04W84/12 - H04W84/16 take precedence
• CPC Class Codes: Y02D 30/70 in wireless communication networks

Abstract

A base station equipment determines, based on a specified condition, whether or not a wireless terminal exists in the vicinity thereof, and then if it exists in the vicinity, the base station equipment transmits information indicating that the base station equipment is ready to communicate with the wireless terminal.

Claims

1. A base station equipment that communicates with a wireless terminal, comprising:

a transmitter that transmits information indicating that the base station equipment is ready to communicate with the wireless terminal;

a receiver for receiving a signal; and

a control unit which determines whether or not a power value of a signal received from the wireless terminal via the receiver is greater than a predetermined threshold value, and which, if it is greater than the predetermined threshold value, determines to transmit the information using the transmitter.

4. The base station equipment according to claim 1, wherein the information contains an instruction to cause the wireless terminal to connect to the base station equipment.

5. The base station equipment according to claim 1, wherein the information contains an instruction to cause the wireless terminal to change a connection destination to the base station equipment that transmitted the information when the wireless terminal is currently in connection with a base station equipment different from the base station equipment.

6. The base station equipment according to claim 1, wherein the control unit synchronizes with other base station equipment based on a timing at which the control unit received a signal from the other base station equipment different from the base station equipment.

7. The base station equipment according to claim 6, wherein the control unit stores in advance a timing at which a signal is transmitted from the other base station equipment, and determines, based on this timing, a schedule to receive which of a signal from the wireless terminal and a signal from the other base station equipment.

8. The base station equipment according to claim 6, wherein the control unit stores in advance a time zone in which a signal is transmitted from the other base station equipment, and receives, in this time zone, a signal from the base station equipment in preference to a signal from the wireless terminal.

2. A base station equipment that communicates with a wireless terminal, comprising:

a transmitter that transmits information indicating that the base station equipment is ready to communicate with the wireless terminal;

a receiver for receiving a signal; and

a control unit that switches whether or not to transmit the information by the transmitter, wherein

the control unit determines whether or not a power value of a signal received from the wireless terminal via the receiver is greater than a predetermined threshold value, and then if it is greater than the predetermined threshold value, the control unit transmits the information, and if it is smaller than the predetermined threshold value, the control unit determines not to transmit the information.

3. The base station equipment according to claim 2, wherein if there is no receipt of a signal by the receiver even after a predetermined period of time, the control unit changes the mode from a mode to transmit the information to a mode not to transmit the information.