Nortel Networks Corporation

Northern Telecom Limited

Paul Douglas McDonald

Vincent E Somoza

Clifford D Read

Pak-Jong Chu

Mitch A Brisebois

John S Moss

Bruce Irwin Dolan

Peter G Hill

Neal T Cowan

Yim Kwong Ng

Robert Charles Templin

Gorete Almeida

Geoffrey A Collar

Susan Kathleen Coleman

Brian E Voss

Currently, networks are used within most enterprises to allow for sharing of resources such as printers and to allow for central server features to be available such as backup operations, shared files, and internal email. With the introduction of the third generation of wireless communication networks in which a mobile station can have an always on capability, private networks can now be established between mobile stations. In these implementations, the mobile stations each have a Home Location Registration (HLR) and a unique Internet Protocol (IP) address. The mobile stations within a private network are listed within a table stored in the intelligent peripheral by their HLRs. The intelligent peripheral regulates the flow of data units within the wireless network by determining if the sender of a packet and the intended recipient are within the same private network.

Wireless network communications

Communications cabinet

Software tools for simulating the planning and operation of one or more cellsites within a wireless network utilize a database of cellsite information such as GPS, topographical, street map, architectural, RF propagation, and end user data. The tools retrieve and manipulate this data through a graphical user interface executed by a computing device. Using the graphical user interface, a user may simulate product information, drive tests, radio frequency propagation data, and user location profiles within a cell.

Tools for wireless network planning

The present invention relates to radio communications and in particular to antenna structures. There is a growing demand in the radio communication system market to reduce the size and cost of radio communication sites and to reduce the maintenance costs involved. Many radio communication sites are also costly and difficult to maintain especially when dealing with components of the antenna structures which are located near the top of the antenna structures. The present invention attempts to address these problems. The present invention provides an antenna structure comprising a hollow antenna mast having an inside and an outside, a movable module disposed inside the hollow antenna mast and a lifting mechanism. The movable module has at least one antenna and/or at least one RF module. The a lifting mechanism permits the raising and lowering of the movable module inside the hollow antenna mast. Furthermore, the communications equipment can be placed inside the hollow antenna mast.

Antenna structure

A circuit pattern on a circuit board, as used in telecommunications systems and other electrical apparatus, often has contact positions for switches, such as pushbutton switches, and for other purposes. The normal copper circuit pattern is covered at the contact positions to give improved contact conditions. Carbon ink has been proposed by obtaining the necessary high level of alignment of carbon ink with the copper pattern at contact positions is difficult as such contact positions have very close members. The invention proposes contact positions having closely spaced inter-digital contact members, in which the circuit pattern extends to and stops at the peripheral region of a contact position, the contact members being of carbon ink and overlapping conductors of the circuit pattern at the peripheral region.

Circuit board with contact positions, as used for telecommunications

In an arrangement of two keyboards or other lamellar input/output devices for a computer or telecommunications terminal, one keyboard is integral with a cabinet of the terminal and the other keyboard normally fits within a housing in an undersurface of the cabinet and is masked by the integral keyboard. To enable withdrawal of the keyboard housed within the housing for use, a rear part of the cabinet undersurface is configured to allow the cabinet to be tilted bodily backwards to allow access to the keyboard. This is then pulled from under the integral keyboard and the cabinet is returned to its stable position. The keyboard housed within the housing is returned to its stored position in a converse manner.

Input/output device arrangements for terminals

Growing community of inventors

Nepean, Canada

Paul Douglas McDonald