Systems and methods for implementing private wireless communications

• US 6,219,539 B1
• Filed: 04/08/1997
• Issued: 04/17/2001
• Est. Priority Date: 04/08/1997
• Status: Expired due to Fees

• Current Assignee: Apple Inc.
• Original Assignee: Nortel Networks Corporation
• Inventors: Basu, Kalyan, Patel, Girish, Huang, Chenhong
• Primary Examiner(s): Cumming, William
• Application Number:
  US08/826,828
• Time in Patent Office: 1,470 Days
• Field of Search: 455/422, 455/417, 455/426, 455/432, 455/510, 455/553, 455/566, 455/561, 370/342
• US Class Current: 455/417
• CPC Class Codes: H04W 16/16 for PBS [Private Base Station] arrangements
• CPC Class Codes: H04W 88/08 Access point devices

Abstract

A communications system includes a dual mode mobile station and a home base station. Dual mode mobile station is operable selectively in CDMA and analog modes. Home base station includes circuitry for establishing wireless communications with mobile station in the analog mode, and circuitry for establishing communications with a wireline communications system, the base station allowing an exchange of information between mobile station and wireline system in the analog mode.

Claims

1. A method of implementing wireless communications comprising the steps of:

in a first mode, establishing communications between a mobile station and a wireless system using code division multiple access (CDMA) signaling; and

in a second mode, establishing communications between the mobile station and a wireline system, said step in said second mode comprising the substeps of;

establishing a wireless connection between the mobile station and a private base station using analog signaling by;

detecting a first available analog channel and a second available analog channel by measuring an up-link signal strength from another mobile station operating in the second mode within an area proximate to the base station, measuring a down-link signal strength from another base station operating proximate to the base station,

in response to said steps of measuring, maintaining a list of available channels,

transmitting control information from the base station to the mobile station via the first available analog channel to initiate a connection therebetween, and

establishing a voice connection between the base station and the mobile station via the second available analog channel;

establishing a connection between the private base station and a wireline network; and

exchanging information between the mobile station and the wireline network via the private base station.

2. A method of implementing wireless communications, said method comprising the steps of:

in a first mode, establishing communications between a mobile station and a wireless system using code division multiple access (CDMA) signaling; and

in a second mode, establishing communications between the mobile station and a wireline system, said step in said second mode comprising the substeps of;

establishing a wireless connection for analog signaling between the mobile station and a private base station, said step for establishing a wireless connection comprising the substeps of;

detecting a first available analog channel and a second available analog channel by measuring an up-link signal strength from another mobile station operating in the second mode within an area proximate to the private base station, measuring a down-link signal strength from another base station operating proximate to the private base station,

in response to said steps of measuring, maintaining a list of information identifying the first available analog channel and the second available analog channel,

transmitting control information from the home base station to the mobile station via the first available analog channel to initiate a connection therebetween, and

establishing a voice connection between the home base station and the mobile station via the second available analog channel;

establishing a connection between the private base station and a wireline system;

and

exchanging information between the mobile station and the wireline system via the private base station.

3. A method of implementing wireless communications, said method comprising the steps of:

in a first mode, establishing communications between a mobile station and a wireless system using code division multiple access (CDMA) signaling;

in a second mode, establishing communications between the mobile station and a wireline system, said step in said second mode comprising the substeps of;

establishing a wireless connection for analog signaling between the mobile station and a private base station, said step for establishing a wireless connection comprising the substeps of;

detecting a first available analog channel and a second available analog channel by measuring an up-link signal strength from another mobile station operating in the second mode within an area proximate to the private base station, measuring a down-link signal strength from another base station operating proximate to the private base station,

in response to said steps of measuring, maintaining a list of information identifying the first available analog channel and the second available analog channel,

transmitting control information from the home base station to the mobile station via the first available analog channel to initiate a connection therebetween, and

establishing a voice connection between the home base station and the mobile station via the second available analog channel;

establishing a connection between the private base station and a wireline system; and

exchanging information between the mobile station and the wireline system via the private base station;

monitoring the strength of a signal transmitted from the home base station to the mobile station;

switching the mobile station from the second mode to the first mode when the strength of the signal transmitted from the home base station falls below a predetermined threshold;

registering a mobile identification number assigned to the mobile station with a selected home location register; and

rerouting a call directed to the mobile identification number via the wireline network to the home base station when received by the home location register.