PAYMENT SERVICE FOR TRANSMISSION OF INFORMATION

Abstract: The present invention relates to methods and means for providing a third party connected to a server on a packet data network, such as the Internet, with a service of transferring information originating from the third party to a mobile user in a wireless communication network free of charge for the mobile user and at the expense of the third party. The packet data network and the wireless communication network are interconnected by a gateway node which will transfer information to the mobile user, free of charge to the user, if a match is found between a first key received from an e-commerce site and a second key received from the third party. A match between the keys indicates that the e-commerce site has administrated either a pre-payment of the transmission, or the initialisation a charging procedure to be completed after the transmission is completed.

Description: PAYMENT SERVICE FOR TRANSMISSION OF INFORMATION Technical field of the invention The present invention relates to methods, a node and a system for providing a third party connected to a server on a packet data network, such as the Internet, with a service of transferring information originating from the third party to a mobile user in a wireless communication network free of charge for the mobile user and at the expense of the third party. Technical background Today, more and more mobile data services make use of the so called "push" -technology. Typically, to push data to a user means that a system or network automatically provides the user with some kind of information. Often this information is of the kind which is desired by the user, and therefore defined by a set of criteria in order to meet the desires of the user. However, in this application, pushing of data relates to any information, such as desired or non-desired information or advertising, that is transferred to a user on the initiative of a transmitting party. The push-technology is today perhaps most widely used for pushing information to a stationary user, such as a user operating a computer connected to the Internet. However, with the rapid growth of mobile communications, in combination with the flexibility of being able to be reached by pushed information at any location, the push- technology is becoming more and more interesting for users being connected to a wireless communication network. For example, the push technology can be realised by way of pushing short messages, e.g. using the SMS service (Short Message Service) provided by a GSM network (Global System for Mobile Communication) , to a mobile user. The technology enhancements of the wireless communication networks further encourage the use of push- technology within these networks. The evolution of higher bandwidth and/or packet data transmissions to the wireless terminals of the mobile users facilitate communication with other data networks, such as the Internet . Examples of wireless communication network with higher bandwidths and with support for packet data transfer to the. wireless terminal of a mobile user are GSM networks providing GPRS services (General Packet Radio Service) , or the forthcoming new generation of wireless communication networks known as UMTS (Universal Mobile Telephony Standard) or 3G networks. When a packet switched connection, rather than a circuit switched connection, is used for transferring data to/from a mobile user terminal, which for example is the case when introducing GPRS in a GSM system, it will be possible for a mobile user to be constantly connected not only to the wireless network, but also to the Internet or some other packet data network via the wireless network and an interconnecting gateway. As the mobile user is constantly connected, the user will be charged for the actual bandwidth he uses. This means that the mobile user will be charged for each packet transmitted or received by the user, rather than for the time duration of the data transfer. One drawback of pushing, or transferring, information as packet data to a wireless terminal of a mobile user is, thus, that the user will be charged by the operator of the wireless network for the number data packets received. In many cases however, it may be in the interest of the originator of the information, if the information could be transferred at the expense of the originator and free of charge for the receiving mobile user. This would not only be relevant when it comes to advertising, but in any situation where the originator has an interest in that the mobile user has knowledge of the information transferred. Thus, it would be desired to be able to charge an information originator for the data packets transmitted to a mobile user. However, when the information originates from a packet data network which is interconnected with the wireless communication network, the originator may be any party having access to the packet data network. Thus, a drawback is that the originator does not need to have some kind of established relationship with the operator of the mobile communication network, or any other operator of a mobile network, which means that there is no mechanism that can be used by the operator for charging all possible originators . on the packet data network for the packet data transmission to the mobile user. Summary of the invention The object of the present invention is to eliminate at least one of the above mentioned drawbacks. Another object is to enable any information content provider to transfer, or push, information to a mobile user at own expense for the information provider, without the need for some kind of direct or indirect relationship between the operator, with which the mobile user has his subscription, and the information provider. According to the present invention, these objects are achieved by the methods, a gateway node and a system having the features as defined in the appended claims and representing different aspects of the invention. The present invention is based on the idea that an e-commerce site administrates the charging of any information content provider on a packet data network that wishes to transfer packet data to a mobile user. The operator of the wireless network is informed by the e- commerce site of the administration procedures before f- Ω H- CQ Hi Hl 0- 3 Ω TJ rt Ω 01 LQ o TJ rr 01 O 0 0 ii O δ o Hi ii t F- SD Hi i i φ 0 <i tr O ii S tr 3 0 P ) o rt tiO SD ϋ rt φ ω 3 H- H- TJ Ω 0 Φ ro Ω <J ø Φ 0 Ω rt ϋ h- 1 Φ 01 CQ - -3 tr . 01 o ø rt ii rt tr Φ ffi Φ φ Ω- 3 Φ SD ι-3 o S-i- 3 t rt H- H- tr Φ Φ rr H- 0- 0 • : tr ϋ φ F- O J Φ Φ 0 0 F- 4 01 ϋ 0 LQ ϋ rt rt TJ 0 rt 01 01 Ω 01 O φ 01 rt ω φ rt tr H- rt φ OI Φ Φ 0 F- tr Φ o - <! 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F 1 φ Φ 01 ϋ ϋ M tr 0 01 φ *< ft tr φ Φ TJ ft F- r ϋ ? Hi F, Ω F- Φ CO ti CO 01 ω Ω- P- F- Φ Ω O Ω φ 0 P- ii o Φ TJ Φ SD cn ϋ 0 ro Φ F- ft Si φ <J SD o H- TJ rt ϋ Φ ø rt ø s--- CQ o oi SD 0 o Si ft CO CQ o SD . F 1 0 ø tr 3 P- -3 TJ P- H 01 SD F- 01 ø O - Hi ø ft <! • F- 01 Φ 0 o rt ro 01 -> 01 (i Ω F- TJ H rt 0 SD Ω Φ tr rt H Ω- Hi tr SD F- ft O O LQ tr X F- rt Φ ϋ Φ P- φ h-" tr 01 ft .V Q Φ O 01 Φ Φ 0 H- rt ω fi m O 0 rr CQ Hi φ φ ro rt SD ii ø Φ 03 0 h- 1 F- φ Φ ft F- Φ X H 0 tr Ω rt φ tr Φ rt ϋ tr ti 3 Φ SD rt Hi Ω LQ Hi Ω Ω- F- O rt O φ rt F- SD H φ ϋ O (i Φ ft s: H SD rt Φ TJ LQ ti ¬ F- ro ti o tr SD Ω rt 0 Hi F- tr ø o rt ft F- tr F- 3 ft tr rt F Ω SD SD ro O ϋ F- Ω ii φ ft P- TJ ø tti 0 Φ Si tr tr ø TJ rt -3 rt φ ft F- F- Φ O Φ o F- ϋ rt ϋ ø φ r TJ F- 0 fϋ rt Hi (D ft Φ SD Φ F- 01 rt tr F- tr tr 0 0 0 Hi Φ Φ 0 rt fϋ tr 3 0 cn Φ Ii i tr TJ Ω- O 0 01 φ H- φ rt H- H SD 0 Ω F- Φ 0 F- -3 F- -3 Ω F- CO SD φ 0 rt O F- φ ι-3 ii TJ Ω- H- H o tr ii 0 rt cn 0 X φ Φ tr SD 0 F- φ o ø 0 tr 01 .---- 3 O ø * φ F- Φ ø i-l- ^--- 0 -3 ϋ ft tr 01 3 Ω Φ Ω Si o ^ 0 CΩ Ω- ft φ rt t Ω Φ 01 0 ϋ rt Hi Φ ft F- rt φ Φ σi ■ : 4 3 ti ¬ rt SD ft 0 F-" F- ffi SD H rt ω cn Φ SD tr 0 01 tr ø ii tr TJ ϋ o 01 ø 0 TJ ro ^ tr 0 0 0 0 TJ P- 0 0 SD ø cn tr φ 3 J 0 ft rt φ ϋ Ω F- 01 Φ Φ So ø o ti ¬ φ i H Ω- F- o 0 Hi TJ 0 ø -3 i P- H Φ t SD rt tr H- 3 ii ϋ φ H-" ii φ TJ O ro r ro F- ft Ω ϋ Φ 0 •fl 0 LQ Φ φ rt o — < ø Ω Φ O SD SD H- Ω- Si φ 01 rt rt Φ Hi 3 -3 Hi rt tr 0 φ X -3 - r ( P- <: ii t? P- φ W F- 0 rt tr 01 Φ ^ ϋ O SD F- O 0 φ LQ ti rt TJ Φ SD P- o ø Ω rt Φ 0 SD -3 H- Φ TJ tr 01 ii ) SD SD Ω ϋ Φ rt 0 H 3 tr . φ SD ϋ 0 F- 0 ϋ Φ -3 ft < ii O H- 0 P- SD *<. <! 01 o rt 0 ?v Ω Si SD tr φ σ TJ Φ H Hi -3 Ω > Pi 01 O O Φ rt Hi ii 0 ii ft F- Φ 0 3 3 TJ Φ Ω Φ cn 0 W SD J TJ , — . ii 0 •• Φ Φ rt rt Φ Ω ii F- ϋ 0 3 F- ϊd tr -3 ft SD F- Ω- SD ti P- Φ Ω 01 -3 rt SD Φ Ω f SD rt SD rt 3 • ; t ϋ Φ <! 01 tr ø 01 cn * F- H Φ 0 Hi φ 0 ii Φ ft cn 0 F- F- Ω SD J rt F- SD φ ϋ o φ 3 Φ 0 F- ø li ø P- Si • ; CQ Φ 3 3 F o .V ø # F- SD o 0 Ω 01 $D O -J F- 0 ii Hi H F- Φ 01 SD Φ rt F- Ω φ P- - „ Ω- Φ I- 1 0 Φ cn ω P- cn 01 ø P- cπ rt 0 Hi »• 0 Φ Ω X Φ -> Φ rt SD 0 ti X CO SD 01 rt ι-3 — rt S 01 H- • Φ SD ii rt SD TJ ϋ Ω Φ ii 0 LQ F- φ Φ Ω rt * • 0 0 F- Φ • TJ ii ft Hi 3 ii tr SD rt tr 0 ti ¬ <J cn CD ø 01 tr 3 cn SD 01 Hi 0 oi H ii SD -3 01 -3 φ φ Φ 3 Φ 0 tr φ 01 ro F- F- S 01 Φ SD φ 01 Φ TJ rj * ≥J ft ft SD Φ Ω O 0 F- H- Φ ii ii ø H- F- ϋ Φ Φ 01 Ω Ω rt ii * : P- 0 rt φ •ft -3 rt Ω TJ <! 01 F 1 0 rr 3 rt 0 o 0 ii Ω ii F- Φ ø Ω . TJ < 01 F- S H 3 tr tr φ SD O • pa F- Hi H Ω Z F- tr "• SD - IQ rt 3 cn 0 rt • Φ 0 SD Φ ti ¬ Hi F- n^ SD Φ Φ H 3 cn P- φ Φ O 0 φ tr 0 S tr < rt 3 H Ω t ro ι-3 * ; 3 LΠ Hi -3 h- 1 F- 3 Φ ii 0 ti SD ft SD Hi SD 0 ii SD φ > H3 -3 3 tr .V 3 tr F- Φ Hi tr F- Φ 0 ø F- P- H O F- W -3 SD ii tr 01 Φ ø < H tr o 0 ro Φ t Φ 0 ø SD F- F- ft tf ø CO F- tirt Φ Ω 0 Φ -> Φ F- F- Φ ii ø ft o ro CQ rt 0 Ω Ω 01 SD 0 Ω F- tr 0 F- cn Φ cn Si φ Φ F- SD rt 0 rt 0 ?V F- LQ ø F- CO s-x. tr tr O CQ Ω SD * : LQ er H- CO o ø S rt -3 iQ tr Si trJ Ω SD ϋ o <i ø ro F- 3 o g s SD Φ 01 . SD o ft ω rr 0 Φ F- SD -3 SD rt SD Hi F- < SD 01 F- § ϋ 0 rt rt -3 rt ø rt Hi 0 tr ii SD Ω 01 tr ft φ ft ti φ I 0 01 SD oi F- tr Hi 0 Φ »-3 tr Φ ø F- ?r SD SD Φ F- F- -3 SD SD 0 ø 0 Ω Φ Ω rt rt rt • ; O φ 0 Hi \-> tr Φ rt rt Ω rt 01 F, F- ft Ω O SD 0 ø rt SD tQ Φ O 01 ø ϋ φ -3 tr tr •i φ P- ii Φ cn tr 0 *< 0 3 F- F- rt 0 0 tr P- rt 01 rt 0 O φ SD SD ii o Si rt Φ Φ ro 0 3 Φ P- α SD SD Φ tr o H ϋ 0 01 TJ • ^ SD tr 0 rt ø 0 φ -3 TJ Φ 01 o 3 φ ti rV IQ 01 SD P- rt SD 0 -3 rt ø SD TJ oi F- 0 ω H O φ Hi ii rt F- ω Si 0 F- rt * φ Ω -3 F- Φ tJl rt tr 0 φ ϋ 01 P- SD 0 01 t ø r GPRS Support Node (GGSN) 10. The SGSN 45 is the node within the GSM infrastructure that sends and receives packet data to and from the wireless terminal via the Base Station System 50. The SGSN also transfers packets between the GPRS terminals, i.e. the wireless terminal 60, and the GGSN 10. Furthermore, it handles PDP contexts (Packet Data Protocol) for connections with any server in any external packet data network, such as with server 70 connected to the Internet 30. The GGSN 10, which is connected to the SGSN 45, is the gateway of the GSM/GPRS system to external packet data networks and routes packets between the SGSN 45 and an external packet data network, e.g. the Internet 30. Thus, from the above description it is clear that in this embodiment, the gateway node of the present invention and the GGSN node of the GSM network is one and the same node. However, the gateway node of the present invention could alternatively be a node interconnecting the GGSN node with the external packet data network. The operation of the overall system in Fig. 1, and its included embodiment of the present invention, will now be described. The description of the operation is made step by step with reference to the numbered arrows of Fig. 1. In step 1, a user 75 of the third party server 70 (which user hereinafter is called third party) transmits a request over the Internet 30 to the e-commerce site server 20, thereby requesting the e-commerce site for permission to use an information transfer payment service, or push data payment service, which is administrated by the e-commerce site. Prior to making such a request, measures must have been taken so that the e-commerce site can charge the third party 75, for example via an account that the third party 75 has at the e-commerce site, a third party's external account in a bank, via a pre-registered or transferred third party's credit card number, or via any other state of the art - ) t to F 1 F 1 cn o n o cn o cn F- 01 rt -3 H F- 0 Pi F- rt 0 rt TJ Ω -3 Φ F- rt SD CD CD Ω F- CD rt H SD Ω Φ φ tr rt Ω 3 0 F- Φ F- 0 0 0 0 0 ti H SD 0 F- vQ 0 tr Ω F- tr 0 F- tr rt 0 0 Hi X SD 0 tr Φ P- rt ϋ ft t SD So ti 3 01 ø (i F- φ tr rt o < rt Φ rt 3 Hi rt D SD Ω F- φ 3 t ft SD tr SD ft ø ft 0 rt 3 tr F- F- ti Φ ro 0 Φ φ 01 tr 3 Φ Φ SD ti tr Ω F- tr ro ft tr 01 tr CO Φ Φ <! 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Φ H 0 F- -3 Φ ft Λ tr 0 S <! ii rt F- - 0 ft TJ H TJ Ω co φ 0 * • φ F- 1 Hi SD Hi 3 F- SD ø CQ o K Φ SD tr Hi 0 rV φ Φ iQ 4 φ . CO 0 01 ti ¬ ϋ Φ 3 3 ϋ F- Φ Ω -3 01 0 LQ 0 ø φ 0 P- F- ii φ 0 CD 0 Ω ro ro * ; J rt o P- φ Φ 0 tr 01 tr Ω 01 F- rt CD LQ ti rt to SD P- *<! 01 w SD ft O tr \-> Λ tr tr 0 SD Ω. Hi • ; rt Φ tr ro 0 F- ro Φ ro 0 V o rt Φ -J F- SD LQ ϋ Si Φ Φ 0 tr 0 φ 0 rt F- Φ 0 rt 3 ro LQ 0 0 1 F- Hi F- 0 0 SO Si r Ω Φ SD φ 3 TJ φ Φ ø rt SD So 01 ti Φ rt ro 3 0 0 F- Φ Ω Si 01 ii ii 3 Φ tr CO 0 φ tr 01 ^ ϋ rt 01 3 01 0 ro ø 01 0 K o Φ 01 rr 0 o tr 01 F 1 0 rt Ω φ 0 tr Φ SD F- 01 ro Ω SD 3 ø ft TJ tr ii O ø *< to 01 tr Hi o 0 ø - ør >Q Hi rt ft 0 rt 01 - tr rt Ω h- 1 3 rt SD li Φ Hi 0 σ 0 S" Φ 01 ^ SD rt ø rt ; Φ F- ti tr 0 ro tr o φ F- ft Φ ti rr rt rt Ω Ω ϋ -3 φ Φ ii tr ro 3 Φ ϋ O Φ tr Ω Hi 3 Φ 0 SD ti Hi Φ Hi 3 O rt tr rr tr F- 01 Ω • CQ φ 01 0 Q Ω 3 0 Si SD SD φ 0 0 Ω * ; Φ 0 tr -3 Φ tr rt SD LQ Φ rt 0 tr F- SD Φ 01 SD 01 rt φ Si ro F- o ti ti SD φ F- SD Ω rt .0 SD . Si rt ro 0 SD 0 SD rt 1 ro - tr Ω 0 Hi ti Φ 0 F 4 φ rt tr 0 -. \-> tr 0 ^ ti ti SD 3 SD Ω P. ro 0 F- ft 0 01 LQ Φ •- LQ 1 SD SD ti Hi Hi F- Hi LQ F 1 0 0 Si 0 0 H F- TJ F- ft ϋ O SD Ω rt i rt CD 0 rt 0 O ti rt TJ Φ 0 TJ 3 0 ti Si o ro rt rt 0 1 tr TJ rt tr 0 tr LQ tr -3 F- 0 0 ti ti i F- 0 SD σ\ ø SD 3 ø SD 0 ø ro tr Φ rt Φ φ Φ Φ 3 φ F- φ F- 3 0 0 Ω rt o rt Ω Φ Φ rt TJ Φ " Hi ii -3 3 0 li 0 F- tr SD SD TJ Hi rt tr . W ti rt - ii tr SD -3 ro Φ SD $D o SD SD rt ro rt LQ φ Φ 0 φ SD 0 tr Φ φ Ω tr Φ ϋ F- 1 3 rt ϋ rt ti rt • : ϋ ti tr 1 F 4 rt LQ TJ rt ti H φ ft H3 rt rt ro o tr 0 rt rt Ω TJ tr rt φ 0 SD Ω F- 3 Ω Φ SD ft K F- rt 3 01 rt tr tr 01 rt — * Hi Φ • . ø 0 F- rt ti ø 0 φ ti Φ O CQ 0 SD ro Φ 3 K. 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Pi 0 01 ro 0 tr ro tr tr Φ 01 * O ro 0 ϋ Φ ti φ Φ SD free of charge for the subscription associated therewith. As discussed above, the right is either acquired by prepayment or via an identification of the third party for later payment during an ongoing, or after a completed, transmission. If the right has been acquired by prepayment, the message from the e-commerce site to the gateway node that includes the first key will further include a measure of the amount of information, e.g. in data bytes or transferring time, for which the third party has paid. As mentioned, step 2 furthermore includes transmission, 2b, of the second key of the pair of keys to the third party. If asymmetrical keys are used, it is the public key that is transmitted to the third party 75 and the private key to the gateway node 10. The transmission, 2a and 2b, of the generated keys, the first key to the gateway node and the second key to the third party, is preferably done over encrypted and/or secure connections. In step 3 the third party 75 transmits a request to the gateway node, i.e. to the GGSN of the GSM network, requesting the gateway/GGSN node to allow information transfer to the wireless terminal free of charge for the associated subscription. This request from the third party includes the second key previously transferred from the e-commerce site 20 to the third party 75. The gateway node will then compare the received second key with the first key previously received from the e-commerce site 20 and stored by the gateway node. If a match is found, the gateway node 10 will accept transmission of the information received from the third party 75 to the wireless terminal 60 free of charge for the associated subscriber, i.e. the mobile user. In step 4, the gateway node 10 receives information in the form of packet data from the third party 75 for further transmission to the wireless terminal 60. The information will be transferred as packets over the GSM network 40 and its provided GPRS service. Preferably, the ) υ to to F 1 H cn o cn O cπ O cn tirt ro tr F, φ 3 F- IQ 0 SD SD rt Φ £ ( \ SD O . *< t o P- φ F 1 o SD 0 & rt ii SD 0 01 ^ 3 o P- rt rt Φ P- rt 0 rt tr ro -3 P- ti ro F> ro O 01 cπ

Claims: CLAIMS 1. A method of a gateway node in connection with transferring of information to a mobile user in a wireless communication network free of charge for the mobile user, said information originating from a third party via a packet data network, such as the Internet, said gateway node being operatively connected to the packet data network and to the wireless communication network, wherein the method includes the steps of: receiving, from an e-commerce site server via the packet data network, a first key indicating that someone has acquired the right to transfer information to the mobile user; receiving, from the third party via the packet data network, a second key in connection with a request from the third party to transfer information to the mobile user; and comparing said first and said second key; and transmitting, if a match is found in said comparing step, information received from the third party to the mobile user free of charge for the mobile user. 2. The method as claimed in claim 1, wherein said step of receiving a first key includes receiving a measure of the amount of information for which a transfer right has been acquired by way of pre-payment at the e- commerce site. 3. The method as claimed in claim 2, wherein said measure denotes a certain number of data bytes, or data packets, or a certain amount of transferring time, at disposal in said transmitting step. 4. The method as claimed in claims 1, wherein the amount of information transmitted in the transmitting step is measured, including the additional step of transmitting a message to said e-commerce site indicating an amount of money to charge the third party. 5. The method as claimed in any one of claims 1 - 4 , wherein the information of said transmitting step is transmitted to the mobile user as packet data. 6. The method as claimed in claim 5, wherein the mobile user is a GPRS or UMTS subscriber. 7. The method as claimed in any one of claims 1 - 6, wherein the transmitting step is performed by using the Wireless Application Protocol. 8. The method as claimed in any one of claims 1 - 6, wherein the information relates to IP telephony originating from said third party and terminating at a wireless terminal of said mobile user. 9. The method as claimed in any one of claims 1 - 8, wherein the transmitting step uses a Short Message Service for transmitting the information. 10. The method as claimed in any one of claims 1 - 9, wherein said first key and said second key are symmetrical keys. 11. The method as claimed in any one of claims 1 - 10, wherein said first key and said second key are a pair of asymmetrical keys, said first key being a private key and said second key being a public key. 12. A gateway node arranged in connection with transferring of information to a mobile user in a wireless communication network free of charge for the mobile user, said information originating from a third party via a packet data network, such as the Internet, said gateway node being operatively connected to the packet data network and to the wireless ' communication network, wherein the gateway node includes: first receiving means for receiving, from an e- commerce site server via the packet data network, a first key indicating that someone has acquired the right to transfer information to the mobile user; second receiving means for receiving, from the third party via the packet data network, a second key in connection with a request from the third party to transfer information to the mobile user; and comparing means for ' comparing said first and said second key; and transmitting means for transmitting, if a match is found by said comparing means, information received from the third party to the mobile user free of charge for the mobile user. 13. The gateway node as claimed in claim 12, wherein said first receiving means further is arranged for receiving a measure of the amount of information for which a transfer right has been acquired by way of prepayment at the e-commerce site. 14. The gateway node as claimed in claim 13, wherein said measure denotes a certain number of data bytes, or data packets, or a certain amount of transferring time, at disposal for said transmitting means. 15. The gateway node as claimed in claims 12, wherein the transmitting means is arranged to measure the amount of information transmitted, and further arranged for transmitting a message to said e-commerce site indicating an amount of money to charge the third party. 16. The gateway node as claimed in any one of claims 12 - 15, wherein the information transmitted by said transmitting means is transmitted to the mobile user as packet data. 17. The gateway node as claimed in claim 16, wherein the mobile user is a GPRS or UMTS subscriber. 18. The gateway node as claimed in any one of claims 12 - 17, wherein the transmitting means is arranged to use the Wireless Application Protocol for the transmission. 1 . The gateway node as claimed in any one of claims 12 - 17, wherein the information transmitted by said transmitting means relates to IP telephony originating from said third party and terminating at a wireless terminal of said mobile user. 20. The gateway node as claimed in any one of claims 12 - 19, wherein the transmitting means is arranged to use a Short Message Service for transmitting the information. 21. The gateway node as claimed in any one of claims 12 - 20, wherein said first key and said second key are symmetrical keys. 22. The gateway node as claimed in any one of claims 12 - 21, wherein said first key and said second key are a pair of asymmetrical keys, said first key being a private key and said second key being a public key. 23. The gateway node as claimed in any one of claims 12 - 22, wherein all of said means included by the gateway node are processing and/or interface circuit means of a general purpose computer implementing the gateway node. 24. A method for providing a third party connected to a server on a packet data network, such as the Internet, with a service of transferring information • originating from the third party to a mobile user in a wireless communication network free of charge for the mobile user, wherein the packet data network and the wireless communication network are interconnected by a gateway node, and wherein the method includes the steps of: accepting, at an e-commerce site server, a request from the third party to use a payment service when transferring information to a subscriber in the wireless communication network; generating, at the e-commerce server, a pair of matching keys consisting of a first key and a second key; transmitting, from the e-commerce server, said first key to the gateway node and the second key to said third party; receiving, at the gateway node, said second key from the third party in connection with a request from the third party to transfer information to the mobile user; comparing, at the gateway node, said first and said second key; and transmitting from the gateway node, if a match is found in said comparing step, information received from the third party to the mobile user free of charge for the mobile user. 25. The method as claimed in claim 24, wherein said step of transmitting said first key includes transmitting a measure of the amount of information for which a transfer right has been acquired by way of pre-payment at the e-commerce site. 26. The method as claimed in claim 25, wherein said measure denotes a certain number of data bytes, or data packets, or a certain amount of transferring time, at disposal in said step of transmitting to the mobile user. 27. The method as claimed in claims 24, wherein the amount of information transmitted in the step of transmitting to the mobile user is measured, including the additional step of transmitting a message to said e- commerce site indicating an amount of money to charge the third party. 28. The method as claimed in any one of claims 24 - 27, wherein the information of said step of transmitting to the mobile user is transmitted to the mobile user as packet data. 29. The method as claimed in claim 28, wherein the mobile user is a GPRS or UMTS subscriber. 30. The method as claimed in any one of claims 24 - 29, wherein the step of transmitting to the mobile user is performed by using the Wireless Application Protocol. 31. The method as claimed in any one of claims 24 - 29, wherein the information relates to IP telephony originating from said third party and terminating at a wireless terminal of said mobile user. 32. The method as claimed in any one of claims 24 - 31, wherein the step of transmitting to the mobile user uses a Short Message Service for transmitting the information. 33. The method as claimed in any one of claims 24 - 32, wherein said first key and said second key are symmetrical keys. 34. The method as claimed in any one of claims 24 - 33, wherein said first key and said second key are a pair of asymmetrical keys, said first key being a private key and said second key being a public key. 35. A system arranged to provide a third party connected to a server on a packet data network, such as the Internet, with a service of transferring information originating from the third party to a mobile user in a wireless communication network free of charge for the mobile user, wherein the packet data network and the wireless communication network are interconnected by a gateway node, and wherein the system includes: a) an e-commerce site server including: accepting means for accepting a request from the third party to use a payment service when transferring information to a subscriber in the wireless communication network; generating means for generating a pair of matching keys consisting of a first key and a second key; and transmitting means for transmitting said first key to the gateway node and the second key to said third party, and b) a gateway node including: receiving means for receiving said second key from the third party in connection with a request from the third party to transfer information to the mobile user; comparing means for comparing said first and said second key; and transmitting means for transmitting, if a match is found in said comparing step, information received from the third party to the mobile user free of charge for the mobile user. 36. The system as claimed in claim 35, wherein said transmitting means for transmitting a first key further is arranged for transmitting a measure of the amount of information for which a transfer right has been acquired by way of pre-payment at the e-commerce site. 37. The system as claimed in claim 36, wherein said measure denotes a certain number of data bytes, or data packets, or a certain amount of transferring time, at disposal for said means for transmitting to the mobile user. 38. The system as claimed in claims 35, wherein the means for transmitting to the mobile user is arranged to measure the amount of information transmitted to the mobile user, including the additional step of transmitting a message to said e-commerce site indicating an amount of money to charge the third party. 39. The system as claimed in any one of claims 35 - 38, wherein the information transmitted by said transmitting means for transmitting to the mobile user is transmitted as packet data. 40. The system as claimed in claim 39, wherein the mobile user is a GPRS or UMTS subscriber. 41. The system as claimed in any one of claims 35 - 40, wherein the transmitting means for transmitting to the mobile user uses the Wireless Application Protocol for the transmission. 42. The system as claimed in any one of claims 35 - 40, wherein the information relates to IP telephony originating from said third party and terminating at a wireless terminal of said mobile user. 43. The system as claimed in any one of claims 35 - 42, wherein the transmitting means for transmitting to the mobile user uses a Short Message Service for the transmission. 44. The system as claimed in any one of claims 35 - 43, wherein said first key and said second key are symmetrical keys. 45. The system as claimed in any one of claims 35 - 44, wherein said first key and said second key are a pair of asymmetrical keys, said first key being a private key and said second, key being a public key. 46. The system as claimed in any one of claims 35 - 45, wherein all of said means included by the e-commerce site server are processing and/or interface circuit means of a general purpose computer implementing the server, and wherein all of said means included by the gateway node are processing and/or interface circuit means of a general purpose computer implementing the gateway node.

Inventors: ERIKSSON JONAS, ERIKSSON, JONAS
Applicants: ERIKSSON JONAS, TELIA AB, ERIKSSON, JONAS, TELIA AB (PUBL)
Application year: 2001
Main classification: H04M15
IPC codes: G06Q20, H04L12, H04L29, H04M15