AU752256B2 - Terminal and method for compressing and/or decompressing messages received or to be sent - Google Patents
Terminal and method for compressing and/or decompressing messages received or to be sent Download PDFInfo
- Publication number
- AU752256B2 AU752256B2 AU41173/00A AU4117300A AU752256B2 AU 752256 B2 AU752256 B2 AU 752256B2 AU 41173/00 A AU41173/00 A AU 41173/00A AU 4117300 A AU4117300 A AU 4117300A AU 752256 B2 AU752256 B2 AU 752256B2
- Authority
- AU
- Australia
- Prior art keywords
- terminal
- message
- messages
- subscriber identity
- compressing
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Ceased
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
- H04W88/02—Terminal devices
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L69/00—Network arrangements, protocols or services independent of the application payload and not provided for in the other groups of this subclass
- H04L69/04—Protocols for data compression, e.g. ROHC
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Computer Security & Cryptography (AREA)
- Mobile Radio Communication Systems (AREA)
- Telephonic Communication Services (AREA)
- Telephone Function (AREA)
- Data Exchanges In Wide-Area Networks (AREA)
Description
GR 99 P 2336 Description Communications terminal and methods for compressing and/or decompressing received messages or messages to be transmitted The GSM standard (Global System for Mobile Communication) mobile radio system which has been adopted throughout the world provides the possibility of transmitting text messages. This can be carried out both between two subscriber terminals (point to point) or also to a multiplicity of subscriber terminals (broadcast mode). Because the transmission rate or the number of characters to be transmitted per message is limited, there is a need for compression of the text messages to be transmitted.
The present invention is based on the object of specifying a technical teaching with which the compression and decompression of text messages is possible in a way which is appropriate for the particular requirements of the transmission of text messages by means of mobile radio systems. This object is achieved according to the present invention by means of a communications terminal as claimed in claim 1, and by means of a method for decompressing a received message in a communications terminal, and by means of a method for compressing a message to be transmitted in a communications terminal as claimed in claim The idea according to the invention is based here on the concept of equipping subscriber identity modules (SIM) which are usually present in mobile phones with functions for compressing and/or decompressing received messages or messages to be transmitted. This solution has various advantages. On the one hand, a network operator can use its own compression and decompression algorithm. On the other hand, mobile phones which are 0/A already available on the market GR 99 P 2336 2 and which support corresponding subscriber identity modules can be expanded by using a new subscriber identity module or else by reconfiguring an existing subscriber identity module with the described functional feature.
Advantageous developments of the invention are the subject-matter of the subordinate patent claims.
The invention will be explained in more detail below with reference to preferred exemplary embodiments and a figure.
Figure 1 shows a schematic view of a communications terminal (KE) according to the present invention. This communication terminal comprises means for receiving (RM) and for transmitting (SM) messages and means (IM) for interacting with a subscriber identity module (SIM) which can be exchanged by a user. The subscriber identity module comprises functions (DKF) for compressing and decompressing received messages or messages to be transmitted. The messages are received or transmitted via what is referred to as an air interface (AI).
Figure 2 shows a schematic view of how the decompression sequence conventionally proceeds (prior art).
Figure 3 shows a schematic view of how the decompression sequence according to the present invention proceeds.
Figure 4 shows a schematic view of how the compression sequence conventionally proceeds (prior art).
Figure 5 shows a schematic view of how the compression sequence according to the present invention proceeds.
7ST? GR 99 P 2336 2a The invention will be described in more detail below using preferred exemplary embodiments and with reference to the figures.
S-1 j GR 99 P 2336 3 According to one preferred exemplary embodiment of the present invention, the functions for compressing and decompressing received messages or messages to be transmitted are divided between the terminal and the subscriber identity module in such a way that two different subscriber identity modules (SIM) can permit two different methods for compressing and decompressing messages to be carried out in conjunction with the same terminal.
According to another preferred embodiment of the invention, all the functions for compressing and decompressing received messages or messages to be transmitted are carried out by device or software objects which are assigned to the subscriber identity module (SIM) and not to the terminal.
In a method for decompressing a received message in a communications terminal according to the present invention, a device of the terminal detects, by means of a feature of this message (for example what is referred to as the message header), that the message is a compressed message. This device or a further device of the terminal subsequently passes on this message to the subscriber identity module for decompression.
During the compression of a message to be transmitted in a communications terminal according to the present invention, a message to be transmitted is passed on to the subscriber identity module for compression and is compressed there using functions which are assigned to the subscriber identity module, and after compression is sent back to the terminal for transmission.
As result of the present invention, the algorithm for compressing or decompressing is carried out on the Ssubscriber identity module (SIM) and is usually implemented as a chip card. The received text messages GR 99 P 2336 4 are conveyed to the SIM, which automatically detects whether the message is compressed, and if it is decompresses it in accordance with the algorithm to be applied. The decompressed message can then be displayed. If text messages are to be transmitted, they are conveyed, before the actual transmission, to the SIM where they are compressed if necessary. This can be carried out, for example, as a function of the number of characters; for smaller quantities of data the compression could also be dispensed with.
The solution according to the invention differs from known approaches for data compression especially in that the compression or decompression is not carried out by the terminal itself but rather by the exchangeable subscriber identity module. This provides maximum flexibility.
This does not necessarily mean that all the functions or functional units which are required or involved in the compression or decompression have to be carried out or implemented on the subscriber identity module. The advantages of the invention are always obtained if the functions or functional units which are characteristic of a compression or decompression method which is used or is to be used or are characteristic of a plurality of such methods are carried out or implemented on the subscriber identity module. Such functions or functional units which are a characteristic of a method can be algorithms or software modules which implement them. In addition, they can be sets of parameters, for example language-dependent or country-dependent tables.
On the other hand, general functions or functional units which are present in the communications terminal in any case and are not specific to a compression method or decompression method, GR 99 P 2336 5 for example processors, memory units etc., do not generally need to be a component of the subscriber identity module. The entirety of all the functions required for the method sequence can nevertheless interact beyond the limits of the subscriber identity module.
If the subscriber identity module is exchanged, the functions, parameters, or the like which are characteristic of a specific data compression method or decompression method are exchanged with it. As a result, it becomes possible, depending on the type of subscriber identity module installed, to use different data compression methods or decompression methods in conjunction with this terminal.
Claims (9)
1. A communications terminal (KE) having means for receiving (RM) and for transmitting (SM) messages and means for interacting with a subscriber identity module (SIM) which can be exchanged by a user, the subscriber identity module comprising functions (DKF) for compressing and/or decompressing received messages or messages which are to be transmitted.
2. The communications terminal as claimed in claim 1, characterized in that functions for compressing and/or decompressing received messages or messages which are to be transmitted are divided between the terminal and the subscriber identity module in such a way that two different subscriber identity modules can permit two different methods for compressing and/or decompressing messages to be carried out in conjunction with the same terminal.
3. The communications terminal as claimed in claim 2, characterized in that all the functions for compressing and/or decompressing received messages or messages to be transmitted are carried out by devices or software objects which are assigned to the subscriber identity module and not to the terminal.
4. A method for decompressing a received message in a communications terminal, in which a device of the terminal detects, by means of a feature of this message, that the message is a compressed message, and in which a device (IM) of the terminal passes on this message to the subscriber identity module (SIM) for decompression.
A method for compressing a message to be transmitted in a communications terminal in which S7 a message to be transmitted z 4> is passed on to the subscriber identity module for compression, compressed there using functions (DKF) which are assigned to the subscriber identity module, and after compression is sent back to the terminal for transmission.
6. A communications terminal substantially as herein described with reference to Fig. 1 of the drawings.
7. A method of decompressing a received message in a communications terminal, said method being substantially as herein described with reference to Fig. 3 of the drawings.
8. A method of compressing a message to be transmitted in a communications terminal, said method being substantially as herein described with reference to Fig. :15 of the drawings.
9. A SIM card modified to compress or decompress messages in accordance with the method as claimed in any one of claims 4, 5, 7 and 8. Dated this 2 1 s t day of January 2002 SIEMENS AKTIENGESELLSCHAFT By HODGKINSON OLD McINNES Patent Attorneys for the Applicant
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP99114134 | 1999-07-20 | ||
| EP99114134 | 1999-07-20 | ||
| PCT/EP2000/003235 WO2001006802A1 (en) | 1999-07-20 | 2000-04-11 | Terminal and method for compressing and/or decompressing messages received or to be sent |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| AU4117300A AU4117300A (en) | 2001-02-05 |
| AU752256B2 true AU752256B2 (en) | 2002-09-12 |
Family
ID=8238625
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| AU41173/00A Ceased AU752256B2 (en) | 1999-07-20 | 2000-04-11 | Terminal and method for compressing and/or decompressing messages received or to be sent |
Country Status (9)
| Country | Link |
|---|---|
| EP (2) | EP1303154B1 (en) |
| JP (1) | JP2003504991A (en) |
| KR (1) | KR20020026946A (en) |
| CN (1) | CN1361997A (en) |
| AU (1) | AU752256B2 (en) |
| BR (1) | BR0012576A (en) |
| DE (2) | DE50007825D1 (en) |
| HU (1) | HUP0201957A2 (en) |
| WO (1) | WO2001006802A1 (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FI111434B (en) | 2001-10-10 | 2003-07-15 | Nokia Corp | Procedure for presenting manufacturer-specific information on a SIM card |
| KR100486525B1 (en) * | 2002-07-05 | 2005-05-03 | 엘지전자 주식회사 | Transport protocol data unit transmission method for mobile communication device |
| US7197189B2 (en) | 2003-05-15 | 2007-03-27 | Hewlett-Packard Development Company, L.P. | System and method having removable storage medium with data compression |
| EP1636908B1 (en) | 2003-06-06 | 2017-05-17 | Nokia Technologies Oy | Arrangement for application message decompression |
| DE102005045149A1 (en) * | 2005-09-22 | 2007-04-05 | Giesecke & Devrient Gmbh | Method for initializing and / or personalizing a portable data carrier |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0802694A2 (en) * | 1996-04-16 | 1997-10-22 | Nokia Mobile Phones Ltd. | Remotely programmable mobile terminal |
| WO1997048212A1 (en) * | 1996-06-07 | 1997-12-18 | Nokia Telecommunications Oy | Data compression on a data connection |
| EP0869691A2 (en) * | 1997-04-04 | 1998-10-07 | Deutsche Telekom AG | GSM mobile radio apparatus, which can be controlled by the network |
-
2000
- 2000-04-11 EP EP03000736A patent/EP1303154B1/en not_active Expired - Lifetime
- 2000-04-11 DE DE50007825T patent/DE50007825D1/en not_active Expired - Fee Related
- 2000-04-11 HU HU0201957A patent/HUP0201957A2/en unknown
- 2000-04-11 CN CN00810663A patent/CN1361997A/en active Pending
- 2000-04-11 AU AU41173/00A patent/AU752256B2/en not_active Ceased
- 2000-04-11 WO PCT/EP2000/003235 patent/WO2001006802A1/en not_active Application Discontinuation
- 2000-04-11 DE DE50002600T patent/DE50002600D1/en not_active Expired - Fee Related
- 2000-04-11 EP EP00920687A patent/EP1195067B1/en not_active Expired - Lifetime
- 2000-04-11 BR BR0012576-8A patent/BR0012576A/en not_active IP Right Cessation
- 2000-04-11 JP JP2001510500A patent/JP2003504991A/en active Pending
- 2000-04-11 KR KR1020027000383A patent/KR20020026946A/en not_active Application Discontinuation
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0802694A2 (en) * | 1996-04-16 | 1997-10-22 | Nokia Mobile Phones Ltd. | Remotely programmable mobile terminal |
| WO1997048212A1 (en) * | 1996-06-07 | 1997-12-18 | Nokia Telecommunications Oy | Data compression on a data connection |
| EP0869691A2 (en) * | 1997-04-04 | 1998-10-07 | Deutsche Telekom AG | GSM mobile radio apparatus, which can be controlled by the network |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1361997A (en) | 2002-07-31 |
| BR0012576A (en) | 2002-04-16 |
| EP1195067A1 (en) | 2002-04-10 |
| HUP0201957A2 (en) | 2002-10-28 |
| EP1303154A1 (en) | 2003-04-16 |
| DE50007825D1 (en) | 2004-10-21 |
| KR20020026946A (en) | 2002-04-12 |
| WO2001006802A1 (en) | 2001-01-25 |
| EP1195067B1 (en) | 2003-06-18 |
| AU4117300A (en) | 2001-02-05 |
| JP2003504991A (en) | 2003-02-04 |
| EP1303154B1 (en) | 2004-09-15 |
| DE50002600D1 (en) | 2003-07-24 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| FGA | Letters patent sealed or granted (standard patent) |