Electrical computers and digital data processing systems: input/ – Input/output data processing – Input/output command process
Patent
1997-06-30
1999-09-14
Lee, Thomas C.
Electrical computers and digital data processing systems: input/
Input/output data processing
Input/output command process
370392, 370412, 379112, 379269, 709206, 710 52, G06F 1314, H04L 1256
Patent
active
059516542
DESCRIPTION:
BRIEF SUMMARY
TECHNICAL FIELD
The present invention relates to a system and a method respectively for signal data processing wherein particularly the signals have a signal format either comprising a control information part and a data part or is such that it can be divided into a control information part and a data part.
The invention also relates to a communication system comprising a signal data processing system.
A system according to the invention among others comprises a central processor system with at least one central processor and an input/output system for communication with peripheral units. The central processor system comprises at least one central processor which at least comprises a number of function blocks whereas for example one or more regional processors are responsible for other function blocks. The cooperation between function blocks of different regional processors is controlled by the central processor system as well as the cooperation between function blocks and the central processor. This cooperation between processors is highly important for the efficiency and the capacity of a data processing system or for example a communication system.
STATE OF THE ART
In so called real-time systems the efficiency and capacity requirements are high. For example in a telecommunication systems different functions are distributed to a number of function blocks. The telecommunications system is stored-program-controlled and controlled and controlling parts respectively comprise different function blocks which are controlled by signals having giving priorities and orders. These signals, in the following denoted cooperation signals, distribute signal data of varying data length and they may have a heavy influence on the capacity of the system. The function blocks are activated by the cooperation signals and in many cases these are executed by more than one processor. It is known for example within telecommunications system comprising a central processor system as well as regional processors wherein function blocks belong to the central processor system and to the different regional processors respectively, to distribute the total traffic handling among regional and central processors. The regional processors and the central processor system then control traffic handling of different categories. The cooperation is controlled, as mentioned above, by the central processor system and cooperation between different function blocks and the central processor requires that the interprocessor cooperation between the different processors be well defined.
The Swedish document SE-A-439 208 discloses a stored-program-controlled telecommunications establishment which comprises cooperating telecommunication means. The system comprises an instruction memory and a data memory for storing of control information that is necessary for controlling the system and one or more processors which in cooperation and through stored control information control the different function blocks in real time and in the desired order. In the known system the total processor load is distributed constantly in such a way that a so called cooperation processor controls the establishment function block interprocessor cooperation. The cooperation processor has access to a cooperation memory for storing of cooperation control information. The cooperation processor distributes cooperation signals and through function blocks for job prioritizing the order for the execution of different functions is given. Through this system the cooperation possibilities between different processors were enhanced both between central, central and regional and regional and other regional processors.
However, the cooperation becomes centralized and the cooperation processor takes a part of the total processor load of the system and executes cooperation functions via the cooperation control information memory, a job and signal buffer memory.
Particularly for applications relating to telecommunications which require a lot of signalling, this means that the system capacity is
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patent: 4755986 (1988-07-01), Hirata
patent: 5870394 (1999-02-01), Oprea
Avsan Oleg
Isaksson Nils
Wildling Klaus
Lee Thomas C.
Telefonaktiebolaget LM Ericsson
Wang Albert
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