BRPI0409414B1 - METHOD FOR MONITORING A REQUEST MESSAGE FROM A MOBILE STATION FOR A CONTENT PROVIDER ON A NETWORK - Google Patents

Description

“METHOD FOR MONITORING A REQUEST MESSAGE FROM A MOBILE STATION TO A NETWORK CONTENT PROVIDER” TECHNICAL FIELD

[001] The invention relates to a communication method for mobile services, in more detail a method for monitoring a request message from a mobile station to a content provider.

PREVIOUS TECHNIQUE

[002] The Global System for Mobile Communications (GSM) is a standard for digital wireless communications. In the GSM system, the mobile phone handset is called Mobile Station (MS). A cell is formed through the coverage area of a Base Transceiver Station (BTS), which serves the MS in its coverage area. Multiple BTS stations together are controlled by a Base Station Controller (BSC). BTS and BSC together form the Base Station Subsystem (BSS). The combined traffic of mobile stations in their respective cells is routed through a switch called the Mobile Switching Center (MSC). The Public Switched Telephone NetWork (PSTN) is a worldwide collection of interconnected voice-oriented public telephone networks. Connection that originates or terminates from the external fixed telephone network (PSTN) is monitored through a dedicated gateway, Gateway Mobile Switching Center (GMSC). The architecture of a GSM system is shown in figure 1.

GSM has many more services than just voice telephony. Today's second-generation GSM networks provide high quality and secure mobile voice and data services (such as Short Message Service / SMS) with full roaming capabilities around the world.

[004] The development of GSM networks and terminals to support more advanced data bearer technologies has enabled the introduction of new data services and interesting mobile applications.

[005] In mobile networks, people can be contacted by calling their mobile phone number or sending a so-called short message to this number through, for example, making use of the Short Message Service. (SMS). Short Message Service (SMS) is the transmission of short text messages to and from a mobile phone, fax machine and / or IP address. SMS messages cannot be longer than 160 alphanumeric characters and cannot contain images or graphics. Point-to-Point Short Message Service (SMS) provides a means of sending limited size messages to and from GSM mobile phones. Detailed information can be found in the ETSI GSM 03.40 standard, Version 5.3.0.

The basic network structure of the SMS service comprises two entities, which can receive or send messages being the terminal points between which the SMS message is sent. The entity may be located on a fixed network, a mobile station, or an Internet protocol network.

Another component in the SMS network is the Mobile Switching Center (MSC), which performs system switching functions and controls calls to and from other telephone and data systems. Its most important functions are logging, location logging update, hand-over and roaming. The MSC is thus an interface between the radio system and various external networks such as the public switched telephone network and packet switched networks. The MSC performs all signaling functions that are required to make calls to and from mobile stations. Communication between different role authorities is based on Signaling System # 7 (SS7). An MSC that also monitors the Gateway function for other networks is called the -MSC Gateway (GMSC).

Messages sent to and from mobile stations are received by a Short Message Service Center (SMSC), which must direct them to the appropriate mobile device if the message is to be sent. to a mobile station, or it usually has to direct it to a recipient. Prior to attempting to provide a short message to a mobile device, the SMSC must receive routing information to determine the Mobile Switching Center (MSC) serving a given mobile station at the time of the provisioning attempt. To receive routing information, SMSC sends an SMS request to the Home Location Register (HLR) to find the customer. Once the HLR receives the request, it will respond to the SMSC with the subscriber's state (either idle or active) and where the subscriber is roaming. The SMSC then transfers the message to the service MSC, which provides the message to the receiving subscriber. Recipients can then initiate a response message using the same process.

The SMS MSC Gateway (SMS-GMSC) is an MSC capable of receiving a short message from an SMSC, interrogating a home location register (HLR) to forward information, and providing the short message to the “visited” MSC. ”From the receiver's mobile station.

[0010] Home Location Registration (HLR) is a database used to permanently store and manage subscriber subscriptions and service profiles. Upon interrogation through SMSC, HLR provides routing information to the indicated subscriber.

[0011] The Visitor Location Register (VLR) is a database that contains temporary subscriber information and local subscriber capabilities. This information is required by MSC in order to serve visiting subscribers.

A Mobile Station (MS) is a wireless terminal capable of receiving and originating short messages as well as voice calls that are an endpoint to or from which the SMS message is sent.

The backbone of the wireless backbone signaling infrastructure is based on Signaling System No. 7 (SS7). SS7 is a global telecommunications standard set by the International Telecommunication Union (ITU), Telecommunication Standardization Sector (ITU_T). The standard defines the procedures and protocol whereby network elements in the public switched telephone network (PSTN) exchange information over a digital signaling network to perform wireless, cellular, and line call preparation, routing, and control. of thread. The ITU definition of SS7 allows national variants, such as American National Standards Institute (ANSI) and Bell Communications Research (Telcordia Technologies) standards, used in North America, and European Telecommunications Standards. Institute (ETSI) used in Europe. The SS7 network and protocol are used, for example, basic call establishment, management, wireless services, wireless travel, and mobile subscriber authentication, enhanced call features, thus providing efficient and secure telecommunications worldwide. SMS comprises two basic peer-to-peer services, namely Mobile Originated Short Message (MO-SM) and Mobile Terminated Short Message (MT-SM).

Mobile Outgoing Messages (MO) are carried from the MO-enabled handset to the SMSC and may be intended for other mobile subscribers or for subscribers to fixed networks or Internet Protocol (IP) networks (including networks). Internet and private e-mail). Mobile Terminated Short Messages (MT) are transmitted from the SMSC to the handset and can be submitted to SMSC by other mobile subscribers through MO-SM or other sources such as voice mail systems or operators.

For MT-SM, a report is always resumed to the SMSC either confirming the short message delivery to the handset or informing the SMSC of the short message delivery failure and identifying the reason for the failure (cause code) . Similarly, for MO-SM, a report is always resumed to the handset either confirming the short message delivery to the SMSC or reporting the failure of supply and identifying the reason.

Many service applications can be implemented by combining these service elements. Apart from the obvious notification services, SMS can be used on one-way or interactive services that provide wireless access to any kind of information anywhere. By investing in new emerging technologies that combine browsers, servers, and new mobile terminal revaluation languages, SMS can enable wireless devices to securely access and send information from the Internet or intranets quickly and cost-effectively. One of these technologies where SMS can provide a cooperative proposal, as opposed to a competitive one, is the Wireless Application Protocol (WAP), which allows data transport for mobile wireless users and works as an interface between the Internet and GSM.

Some of the potential applications of SMS technology, which uses both MT-SM and MO-SM, where appropriate, include Notification Services, such as voicemail / fax notification, email notification, and reminder services. / calendar, e-mail interworking, paging, information services such as weather reports, traffic information, entertainment information (eg cinema, theater, concerts), financial information (eg , stock investment quotas, exchange rates, banking systems, brokerage services), and directory assistance and WAP integration.

[0018] SMS can support both MT and MO to allow not only delivery under specific conditions but also on-demand delivery as a response to a request.

[0019] The specification of the ETSI 3GPP TS 29.002 V3.10.0 standard Mobile Application Part (MAP) specifies the scenarios for mobile terminated as well as mobile originated short messages.

The GSM network, however, was never designed to monitor interactive use of SMS. Interactive use of SMS from the GSM network is most often slow because of the lack of support for these types of applications, such as many mobile service applications, where interactive signaling is used.

[0021] A common scenario in a mobile service application is sending a short message through a mobile station, such as a service request, and sending a replica for the request. Sending such a replica will most often force the radio system portion of the network to redo paging to find the location of the mobile station requesting the replica. Such a scenario causes performance degradation for users. In some cases, the time until a response is received is unacceptably long.

OBJECTIVE OF THE INVENTION

[0022] The object of the invention is a new and more sophisticated way of monitoring replica messages in which prior art problems with additional time and radiolocation are avoided.

INVENTION SUMMARY

The method of the invention for monitoring a request message from a mobile station to a content provider is performed on a network comprising at least said mobile station, said content provider, a gateway, and a content system. radio. The radio system has one radio link with the mobile station and another link with the gateway. In the method, the mobile station sends a request message through a radio channel on said radio link, which request message is received by said radio system. The radio system transmits the request message to the gateway, and the gateway sends the requested message forward to the content provider. Upon successful submission of the request message to the content provider, the gateway sends a response to the mobile station successfully sending said request message. The response to the mobile station is sent through said radio system and also through said radio channel which is kept open for response for a given time. When the content provider has received the request, it sends a replica message to the mobile station for the request. The method is characterized by the fact that both said successful send response and said replica from the content provider are received by the mobile station via the same radio channel.

Preferred embodiments of the invention have the features of the subordinate claims, 10025] The gateway preferably delays the delivery to the mobile station of successfully sending the short message in order to keep the radio channel open between the mobile station and the radio system for a given time, that is until the replica message is received from the content provider. The gateway then sends the successful send response message and the replica message to the mobile station immediately after each other on the same said radio channel.

[0026] The invention is advantageously implemented in a GSM network for making use of the SMS service scenario. In this scenario, Mobile Short Message (MO) is carried from the MO-enabled handset to SMSC and may be intended for other mobile subscribers or for subscribers to fixed networks or Internet Protocol (IP) networks (including Internet and private e-mail). For MO-SM, a report is always resumed for the handset either confirming the short message delivery to the SMSC or informing the supply failure and identifying the reason. When the invention is implemented in this scenario, the SMSC monitors the gateway functions of the invention and the content provider is, for example, an entity in an Internet Protocol (IP) network.

[0027] A reply message from a successful short message send after a successful send or an interrupt signal from an unsuccessful send is sent to the mobile station. The reply message is, for example, a confirmation to a short message sent by making use of the Short Message Service (SMS) on a GSM network. An unsuccessful send interrupt signal is sent to the mobile station when the radio channel hold time is exceeded.

Usually, in prior art solutions, such acknowledgment is sent as soon as the short message reaches the GMSC portion of the SMSC. If this reply message is delayed for some reason too long, the delay will cause an interrupt signal and the handset will interpret the interrupt signal as a failure message.

In the invention, the radio channel between the mobile station and the radio system (such as the Base Station Subsystem (BSS) when implemented in GSM) is kept open by delaying the delivery to the mobile station of a successfully send the short message. After receiving the replica message from the content provider, the gateway sends the reply message of successfully sending the short message to the mobile station immediately following said replica message on the same channel, usually within less than 0. ,2 seconds.

This delay must be below the limit of causing an interrupt signal to the mobile station for an unsuccessful sending of the short message. Thus, the delay to keep said radio channel open is about 1-2 seconds. The delay is, for example, controlled by means of a timer. Preferably, the reply message is, however, sent anyway before the delay ends, if no replies have arrived from the content provider.

In this manner, in the invention, the problems of the prior art with extra paging to the radio system to find the location of the mobile station by delaying the response to the message sent by the mobile station and by maintaining open the radio channel between the radio system and the mobile station for later use in sending the replica by the content provider. If the channel had not been kept open, a new radio location would be required to find the location of the mobile station when the response was sent by the content provider.

In the invention, performance for interactive applications between mobile stations and content providers is maximized by delaying the successful send response before sending it to the mobile station long enough, no more than about 2 seconds to keep the radio channel open for the replica, yet below the interrupt limit.

In addition to good performance, there will be fewer radiolocation requests on the network. The disadvantage is that the mobile device will be blocked by the delay time, but a calculation shows that the extra charge will only be in the order of about 2%. The cell in which the mobile device is located will be blocked for further radiolocation during this short extra time when the response is delayed.

The invention will be described hereinafter by means of some advantageous embodiments and with reference to the figures implemented in the SMS service on a GSM network. The intention is not to restrict the invention to the details of these embodiments, which are presented for illustrative purposes only and the idea of the invention could equally be implemented in networks other than GSM.

FIGURES

Figure 1 shows the basic network structure for a GSM system and the SMS service, in which the method according to the invention can be implemented.

Figure 2 shows the prior art procedure of short message transfer originated by the mobile device.

Figure 3 shows the method of the invention for monitoring a request message from a mobile station to a content provider.

DETAILED DESCRIPTION

Figure 1 is an architectural view of the existing basic network structure of the SMS service in the GSM network, wherein the method of invention can be implemented to monitor a request message in the form of a short message from a station. to a content provider outside the GSM network.

The GSM network can be divided into three main parts.

[0040] The first part, Mobile Station (MS) with reference number 1 is supported by the subscriber.

The second part, the Base Station Subsystem (BSS), controls the radio link with the Mobile Station. A cell is formed by the coverage area of the Transceiver Base Station (BTS) having reference number 3 in FIG. 1, which serves MS 1 in its coverage area. Several BTS stations together are controlled by a Base Station Controller (BSC) having reference number 4 in the figure. BTS 3 and BSC together form the Base Station Subsystem (BSS).

[0042] The third part, the Network Subsystem, whose main part is the Mobile Services Switching Center (MSC) with reference number 5 in the figure, performs call switching between the mobile device and other fixed network users. or mobile as well as manage mobile services such as authentication. Operations and Maintenance Center, not shown, oversees proper network operation and configuration. The Mobile Station and Base Station Subsystem communicate over the air interface or radio link via a radio channel having reference number 2 in Figure 1. The Base Station Subsystem communicates as MSC via a Cable interface.

In the SMS service provided by the GSM system, a short message may be sent from mobile station (MS) 1. Mobile Switching Center (MSC) 5 performs the signaling functions that are required to send the message ahead. MSC 5 communication is also based on Signaling System protocol no. 7 (SS7), which is indicated with reference numeral 6 in the figure.

The Visitor Location Record (VLR) with reference number 8 is a database containing temporary information about subscribers. This information is required to serve visiting subscribers. It is used by MSC 5 when a short message is sent to another mobile station and MSC 5 also interrogates VLR 8 to verify that the message transfer does not violate the invoked supplementary services or restrictions imposed.

The signal containing the SMS message originally sent from MS 1 is transmitted from MSC 5 via the SS7 signaling protocol to gateway-MSC (GMSC) with reference number 9 which monitors all messages for destinations on other networks, being an interface between MSC 5 and other networks, such as the Public Switched Telephone Network (PSTN) or (ISDN), both referred to with reference number 12 in Figure 1. ISDN is the Digital Network of Integrated Services Digital NetWork, and is a digital telephone connection system that has been available for over a decade. This system allows data to be transferred simultaneously across the world using point-to-point digital connectivity.

Gateway-MSC (GMSC) 9 transmits the short message to the Short Message Service Center (SMSC) with reference number 10, whose function is to delay, store and carry short messages between sender and receiver. . SMSC 10 provides the message which here is a service request to a content provider (CP). Indicated with reference number 11 in FIG. 1. CP 11 could be located, for example, in an IP network.

[0047] In some situations, a response to an SMS request is required by MS 1 sending the request.

The response to MS 1 from CP 10 is received by SMSC 9, which then has to direct it to the appropriate mobile device. Before attempting to provide the short message, the SMSC must receive routing information to determine the correct Service Mobile Switching Center (MSC) 4 for mobile device 1 at the time of the provisioning attempt.

[0049] Home Location Registration (HLR) with reference number 7 is a database used for permanent storage and management of subscriber subscriptions and service profiles. Upon interrogation by SMSC 10, HLR 7 provides routing information to the indicated subscriber.

To receive the routing information, SMSC 9 sends an SMS request to HLR 7 to find the traveling client. Once HLR 7 receives the request, it will respond to SMSC 10 with the subscriber's state (either inactive or active) and where the subscriber is traveling. The SMSC 10, then upon receiving the location information for MS 1, transfers the message to the service MSC 5, which provides the message to the receiving subscriber, that is, to MS 1.

Figure 2 shows the prior art Mobile Originated Short Message (MO-SM) service, which is one of the peer-to-peer SMS services according to the ETSI 3GPP TS 29.002 V3 standard specification. 10.0 Mobile Application Part (MAP).

[0052] In Figure 2, the mobile station (MS) sends a short message directed to a CP content provider on another network, such as an IP network. The message is first sent to the Transceiver Base Station (BTS) in step 1 over a radio channel between the mobile station MS and the BTS. BTS then transfers the message to the Base Station Controller (BSC) in step 2, which transmits it to the Mobile Switching Center (MSC) in step 3 of figure 2. The MSC interrogates the VLR to verify that the transfer Messaging does not violate the supplementary services invoked or the restrictions imposed in steps 4 and 5. The VLR, which keeps track of visiting subscribers, would know if, for example, a given mobile station would not be allowed to receive short messages.

In step 6, the MSC sends the message forward to the SMSC. In step 7, the SMSC then provides the short message to the content provider (CP). The message is sent, even if not shown in the figure, through the SS7 signaling protocol through a Gateway-MSC (GMSC) that monitors all messages to destinations on other networks being an interface between the MSC and other networks. GMSC provides network interworking to access the Short Message Service Center (SMSC), the mobile network, and forwarding routing information to the SM (Short Message). All short messages go through the GMSC.

According to the standard method of Figure 2, SMSC confirms to MSC the successful result of the short message operation in step 8 as quickly as possible and MSC transmits to MS the successful result of the Message operation. Short Originated by mobile device in step 9 to BSC which transmits it to BTS in step 10. BTS then successfully transmits the message result to the mobile station MS in step 11 via the between the MS and BTS, through which the message in step 1 was sent. When signal 6 is sent as quickly as possible, it is usually sent just before signal 7 at approximately the same time, however. If MS had requested a replica from the CP content provider for the short message, the CP replica arrives after step 11 and is sent to MS separately.

Figure 3 shows the method of the invention for monitoring request messages implemented in the GSM network SMS service scenario, then the request message is sent as a short message. Steps 1-6 in this implementation are the same as in Figure 2, that is, the mobile station (MS) sends a short message, which in this example is a service request to a content provider on another network. , for example an IP network, such as the Internet, through the radio channel between MS and BTS to BSC, from which it is transmitted to the mobile switching center (MSC) in steps 1-3. In steps 4 and 5, the MSC interrogates the VLR to verify that the message transfer does not violate the invoked supplementary services or the imposed restrictions. In step 6, the MSC sends the message forward to the SMSC which acts as the gateway through which the request message is sent from the mobile station MS to the CP content provider, which may be on another network. In step 7, the SMSC then provides the short message to the content provider (CP).

Instead of sending a successful result replica message immediately, as was done in the standard method described in Figure 2, SMSC delays the response in order to keep the radio channel open between MS and BSC in step 8, until a response to the request arrives from the content provider, in step 9. After receiving the 9 signal, the SMSC transmits the corresponding successful result replica message, in step 10, to the MSC, as was performed in the standard method described in step 8 of figure 2. In figure 3, the successful result of the message is transmitted to the MS in steps 1113 through the BSC and BTS. Immediately thereafter, usually within less than 0.2 seconds, the SMSC transmits the content provider replica to the MS in step 14 through the MSC and in steps 15 - 17 through the BSC and BTS as signals 11. -13. Signals 10 and 14 are transferred to the MSC briefly enough one after the other, so that signals 13 and 17 are transmitted over the same radio channel to the MS, the same through which the signal from step one was Sent.

Claims (8)

A method for monitoring a request message from a mobile station to a content provider in a network comprising at least said mobile station, said content provider, a gateway, and a radio system having a radio link. with the mobile station and another gateway link, which method in which a) the mobile station sends said request message via a radio channel on said radio link, b) the request message is received by said system c) the radio system transmits said request message to said gateway, d) the gateway sends the request message to the content provider, e) the gateway sends to the mobile station via said radio system a successful send response of said request message through said radio channel, which is kept open for response for a given time, f) the content provider sends a replica message to for the mobile station at said request, characterized in that the messages of steps e) and f) are received by the mobile station via the same radio channel. Method according to claim 1, characterized in that the gateway delays delivery to the mobile station from successfully sending the short message in order to keep the radio channel open between the mobile station and the radio system. for a given longer time. Method according to claim 2, characterized in that the radio channel is kept open until the replica message of step f) is received from the content provider. Method according to claim 3, characterized in that the gateway sends the reply message from step e) and the reply message from step f) to the mobile station immediately after each other on said same channel. radio Method according to any one of claims 1 to 4, characterized in that said requesting message from the mobile station is a Short Message (SM) in a GSM network, whereby a reply message from a Successful sending of the short message is sent after successfully sending within said time of step e) or an interrupt signal of an unsuccessful sending is sent to the mobile station when the time of step e) is exceeded. Method according to any one of claims 2 to 5, characterized in that the delay is below the limit of causing an interrupt signal to the mobile station for unsuccessful sending of the short message. Method according to claim 6, characterized in that the delay for maintaining said radio channel is about 1-2 seconds, which delay is controlled by means of a timer. Method according to any one of claims 2 to 5, characterized in that the reply message from step f) is sent anyway before the delay, if no replies have arrived from the content provider.