Wednesday, August 17, 2016

Almost Twenty Five Years Ago

From a filing for Pioneer Preference in May 1992 I wrote the following:

From FCC Pioneer Preference May 3 1992

Telmarc Telecommunications


            5. The following technological approaches will be deployed, integrated, tested, and optimized to determine their effectiveness in providing the specified service quality goals.

(1) Adaptive Network Management: Adaptive Network Management, ANM, is a system that uses in-situ sensors to monitor the power and signal quality throughout the network. The number of sensors will greatly exceed the number of cell locations. This set of dynamic measurements will then be used in a feedback schemes to adaptive change the characteristics of the cell transmit power and other characteristics to maximize the service quality. Specifically, the Petitioners have individually designed a proprietary network management system that uses the in-situ sensors that monitor all key signal elements. These elements are power, frequency, interference, noise, and other significant signal parameters. The system then transmits these signals back to a central processor which then generates an optimal signal to control the cell site transmission characteristics, such as power, frequency and other factors. The overall objective is to optimize the system performance from the users perspective.

(2) Gateway RF Digital Front Ends: A broadband, digital front end will be used to act as a gateway to interface the air interfaces of CDMA, TDMA and other access methods through the same cell and in the same frequency band. This system will permit multiple air interfaces to be gatewayed into the same network access point thus reducing the need for a single standard, and increasing the ability to provide a national network. This front end has been developed by Steinbrecher Assoc, of Woburn, MA. The system element allows, through its use of large gain bandwidth product front end and fully digital RF processing, the ability to handles many different and simultaneous multiple access methods, such as TDMA and CDMA. This ability goes to the heart of interoperability and standards.

(3) CDMA Backbone Network: The Petitioner will use a CDMA air interface and access methodology. The Petitioner fully supports the efforts of QUALCOMM in their development and implementation of CDMA in the 800 MHz band and their recent movement of this to the 1.85-1.90 GHz bands. Although there is no uniqueness in the use of CDMA, the Petitioners argue that this technology has specific characteristics that allow for the delivery a maximum benefit to the public.

(4) Co-Located Distributed Switch Access: Unlike other proposed schemes which use redundant MTSO accesses, this trial will focus on Central Office Co-Location methods that reduce capital and operating cost redundancies. The co-location approach, will minimize access line costs and eliminate the need for a MTSO. The adjunct processors at the Central Offices will be interconnected by a high speed bus to allow for adequate control and call hand-off. Co-Location is achieved via the intelligence that is contained in the CDMA cell sites and the adjunct processor distribute communications and processing capabilities. The fundamental existence of this capability was demonstrated by QUALCOMM in their CDMA trial, albeit not in the Co-Location context. The QUALCOMM QTSO was in effect a no Co-Located adjunct. The Petitioners propose to request access from the PUC in the Commonwealth of Massachusetts to access New England Telephone on a Co-Locations basis. The public good achieved is through the reduction in costs and the ability to use existing capital assets provided by the LECs. The uniqueness of the Petitioners proposals are the fact that extensive use of adjuncts will be made in the system operation.

(5) Adaptive Beam Forming Phased Array Technology: One of the current problems with a cellular systems will be the use of broad beam antennas and the inability to provide additional antenna gain on both transmit and receive to the individual portables. With the use of adaptive beam forming antennas, the service to lower power portables may be improved. The Petitioners approach will include such capabilities. Time dynamic control of these multiple bean antennas will permit higher localized gain on portables, which will in turn allow for lower transmit power and thus longer portable battery life. The Petitioners have been discussing the use of the technology developed at the Massachusetts Institute of Technology's Lincoln Laboratory in this area.

All of the above are now becoming a reality in wireless. Timing is everything, so is living long enough!