Wireless Digital Personal Communications System Having Voice/Data/Image Two-Way Calling and Intercell Hand-Off Provided Through Distributed Logic Resident in Portable Handset Terminals, Fixed Terminals, Radio Cell Base Stations and Switched Telephone Network

Abstract

A wireless digital personal communications system (or PCS) having a plurality of radio cell base stations, fixed terminals, and portable handset terminals, each having a predetermined radio cell coverage area. The wireless PCS has a full digital network interface. The personal communications system facilitates the interconnection and switching of PCS call traffic through the digital network interface and the public switched telephone network, or any switched network. The personal communications system has voice / data / image (or any combination thereof) and incoming and outgoing calling capability. The PCS is fully operational and compatible with any and all modulation approaches selected for wireless communications. The intercell protocol hand-off being provided through distributed logic which is implemented in software that is resident in the intelligent portable handset terminals, in the intelligent fixed terminals, in the intelligent base stations, and in the public switched telephone network (or any switched network). Alternative embodiments of the present invention include a wireless digital personal communications system having authentication means for authenticating a remote device; a wireless digital personal communications system having a combination of authentication means for authenticating a remote device and security means for securing signal and message content between an intelligent base station and a remote device, the security means including a predetermined encryption and decryption technique; a wireless digital personal communications system having dynamic zone grouping of portable handset terminals or fixed terminals; and a wireless digital personal communications system having call forwarding for unanswered calls.

Description

[0001]This application is a continuation-in-part of U.S. patent application Ser. No. 08 / 184,298 filed Jan. 21, 1994, titled “Wireless Digital Personal Communications System Having Voice / Data / Image Two-Way Calling And Intercell Hand-Off Provided Through Distributed Logic Resident In Portable Handset Terminals, Radio Cell Base Stations and Switched Telephone Network” and is assigned to the assignee of the present invention.BACKGROUND OF THE INVENTION[0002]This invention relates generally to a wireless digital personal communications systems having a plurality of intelligent base stations, intelligent portable handset terminals, and intelligent fixed terminals, each having a predetermined radio cell coverage area, and more particularly to a digital, radio cell, radio-telephone, personal communications system (or PCS) having a full ISDN interface (or any standardized digital network interface), thereby facilitating direct interconnection and switching of PCS call traffic through the ISD...

AI Technical Summary

Benefits of technology

Facilitates efficient and flexible communication by allowing seamless two-way calling, intercell hand-off, and direct interconnection of PCS call traffic through standardized digital networks, enhancing user mobility and service reliability.

Problems solved by technology

Current radio equipment and related services presently offered (i.e., cordless telephones, radio paging, and existing cellular radio) cannot fully meet the demands for these new types of PCS services.

For example, cordless telephones are used in and around the home or office, operate on only a very few channels (10 or so) and are limited to use in the immediate vicinity of its associated base station.

Radio paging services are only one-way and have limited capabilities.

Cellular and specialized mobile radio services cannot meet the full range of expected demand for PCS.

Images