Multiplex communications – Communication over free space – Having a plurality of contiguous regions served by...
Patent
1997-12-29
2000-06-06
Ton, Dang
Multiplex communications
Communication over free space
Having a plurality of contiguous regions served by...
H04J 316
Patent
active
060727896
DESCRIPTION:
BRIEF SUMMARY
TECHNICAL FIELD
The present invention relates to a method for transferring of software from a first telestation into a memory unit in a second telestation. The invention also relates to an arrangement for carrying out the method.
DESCRIPTION OF THE BACKGROUND ART
The amount of transferred information in telecommunication systems has since long increased rapidly. The information could be of various kinds, e.g. speech, facsimile or video. This constantly increasing amount of transferred information requires fast transportation without unnecessary disturbances. Actions that often causes disturbances in a telecommunication system is loading of memory units, e.g. when changing software version.
The most common method when loading memory units in radio transceivers in a mobile telecommunication system is transferring of software via a control channel. This method is used in various types of mobile telecommunication systems, e.g the D-AMPS system. The D-AMPS system (Digital--Advanced Mobile Phone System) comprises a number of base stations connected to a mobile services switching centre via transmission links, so called PCM-links. A PCM-link comprises a number of traffic channels and one control channel. The control channel is common to all traffic channels and handles the control of the traffic. When reloading a memory unit in a radio transceiver in a base station, the common control channel is used. Using the common control channel when transferring loading data to a memory unit implies that the control channel cannot be used for its normal purpose i.e. handle the traffic distribution. Loading of software via the common control channel is well described in Ericsson document: "CMS 8800 System Survey Training docsient (p. 235-240)" and in the D-AMPS specification "IS-136". Normally the traffic has priority over the loading of data. The loading can therefore be very time consuming, especially when the traffic intensity is high. When the loading has priority, i.e. when consideration is not taken to the normal traffic, the reloading can disturb the normal traffic and when the intensity is very high, the traffic can be totally ruined.
A telecommunication system is known from JP 5/219557 in which a master memory unit contains information common to a number of slave memory units. At power loss in the master memory is unit, information is fetched to the master unit from the slave units, via the air interface. The purpose of the invention according to the Japanese patent is to avoid back-up battery costs.
SUMMARY OF THE INVENTION
The problem with the previous known techniques is that the transferring of loading data (the loading data is also called software) via a common control channel conflicts with the normal traffic transportation and is therefore often very time consuming.
This problem is solved by a method and an arrangement for transferring of data from a first telestation to a second telestation (the two stations are also called telestation and teleunit). The data is transferred on a transmission link between the two stations. In accordance with the invention the data is transferred on channels in the transmission link, which channels are normally assigned other types of transmission, i.e. traffic related transmission like speech information.
The present invention thus relates to a method and an arrangement for fast loading of memory units without disturbance of the normal traffic. The method includes steps for selecting a memory unit which is to be loaded in the second telestation and steps for identifying a channel on the transmission link corresponding to the selected memory unit. The method also includes steps to distribute data from the first telestation to the identified channel. The method also includes steps for transferring the data on the transmission link to the second telestation and to distribute the data to the selected memory unit.
The arrangement includes a system which comprises communication nodes, such as telestations for instance. The nodes enable transferring of data from the first to
REFERENCES:
patent: 5564108 (1996-10-01), Hunsaker et al.
patent: 5864554 (1999-01-01), Rostoker et al.
"CMS 8800 System Survey Training Document", pp. 235-240, Ericsson, 1992.
Telefonaktiebolaget LM Ericsson
Ton Dang
LandOfFree
Method and an arrangement relating to telecommunication systems does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Method and an arrangement relating to telecommunication systems, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and an arrangement relating to telecommunication systems will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2220195