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SIMPLE DOWN LOAD INTERFACE FOR GSM EQUIPMENT

IP.com Disclosure Number: IPCOM000007852D
Original Publication Date: 1996-Aug-01
Included in the Prior Art Database: 2002-Apr-29
Document File: 3 page(s) / 111K

Publishing Venue

Motorola

Related People

Barry King: AUTHOR [+2]

Abstract

The main processor system in a GSM base station uses program code stored in volatile RAM. In a working system the base station is networked to a central office. On powerup boot code requests a code download using the network. When the unit is powered up in stand alone mode (i.e. not connected to a GSM network) it requires its operational code to be loaded into the volatile RAM. The current method is to use a personal computer with a hard disk to store the program and to transfer the data via a Local Area Network interface card (LAN card).

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0 M M-LA

Technical Developments

SIMPLE DOWN LOAD INTERFACE FOR GSM EQUIPMENT

by Barry King and David Gumbrill

BACKGROUND

                           ered up in stand alone mode (i.e. not connected to a The main processor system in a GSM base sta- GSM network) it requires its operational code to be tion uses program code stored in volatile RAM. In loaded into the volatile RAM. The current method a working system the base station is networked to a is to use a personal computer with a hard disk to central office. On powerup boot code requests a code store the program and to transfer the data via a Local download using the network. When the unit is pow- Area Network interface card (LAN card).

CURRENT METHOD

I - t - J

A) RS232 Serial Link -D Printer Port

LANcard. Y Personal Computer

lIIzr2

BI LAN Interface

GSM BTS

Fig. 1 Current Method Used to Code Load GSM BTS

  Figure 1 shows the current method employed to NEW METHOD code load a GSM BTS for commissioning or lab
debugging. We have seen the method usually employed for code loading on GSM BTS. However to improve The method makes use of a personal computer, the method we need to solve the following.
two interfaces are required A) RS232 interface for a

Man machine interface and B) A local area network 1) How to eliminate the requirements for a special- interface to provide the vehicle for code download. ized LAN interface on the PC and Base station.

  The LAN typically operates at 10 Mb/s and 2) How to speed-up the process. depending on download code size the transfer could
take up to 10 minutes.

0 hlotorola. 1°C. 1996 167 August 1996

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