ADJOINING BASE STATION DETERMINING METHOD AND MANAGEMENT DEVICE

• US 20100227634A1
• Filed: 12/10/2009
• Published: 09/09/2010
• Est. Priority Date: 03/06/2009
• Status: Abandoned Application

• Current Assignee: Hitachi, Ltd.
• Original Assignee: Hitachi, Ltd.
• Inventors: Usuba, Keiji, TAKAYANAGI, Daigo
• Application Number:
  US12/634,914
• Publication Number:
  US 20100227634A1
• Time in Patent Office: Days
• US Class Current: 455/500
• CPC Class Codes: H04W 24/02 Arrangements for optimising operational condition

Abstract

A novel method for automatically determining adjoining base stations and storing the information on the adjoining base stations in these base stations is provided which, when a new base station is deployed, immediately sets the adjoining base station information and does not consume wireless resources. This method introduces a management device which, in automatically determining adjoining base stations, executes a decision logic that determines two base stations to be adjoining each other when the distance between the two base stations is smaller than the sum of the radii of coverage of the two base stations.

Claims

1. A management device connected to base stations via a network, comprising:

a receiving unit to receive from the base stations identifiers, position information and radio transmission power values of the local base stations;

a radius of coverage calculation unit to calculate a radius of coverage of each base station based on the radio transmission power value received through the receiving unit;

an adjoining base station deciding unit to, upon receiving a request for information on adjoining base stations from a first base station, check the radius of coverage calculated by the radius of coverage calculation unit and the position information received by the receiving unit to see if a distance between the first base station and a second base station is smaller than a sum of the radii of coverage of the two base stations and, if so, decide that the two base stations are adjoining base stations to each other; and

a sending unit to send to the first base station information on the adjoining base stations of the first base station determined by the adjoining base station deciding unit.

2. A management device according to claim 1, wherein the sending unit sends to the base stations determined as the adjoining base stations of the first base station information that they are the adjoining base stations of the first base station.

3. An adjoining base station deciding method for determining adjoining base stations of each base station, comprising the steps of:

receiving from the base stations identifiers, position information and radio transmission power values of the local base stations;

calculating a radius of coverage of each base station based on the radio transmission power value received;

checking, upon receiving a request for information on adjoining base stations from a first base station, the calculated radius of coverage and the received position information to see if a distance between the first base station and a second base station is smaller than a sum of the radii of coverage of the two base stations and, if so, decide that the two base stations are adjoining base stations to each other; and

sending to the first base station information on the adjoining base stations of the first base station determined by the adjoining base station deciding unit.

4. An adjoining base station deciding method according to claim 3, further comprising a step of:

sending to the base stations determined as the adjoining base stations of the first base station information that they are the adjoining base stations of the first base station.