MXPA98004353A - Method and system to provide data communication with a motion station - Google Patents

Abstract

The present invention relates to a teleservice server in a wireless network that provides an interface between a mobile station and an Internet protocol network, thereby facilitating data transfers between these elements. The server translates datagrams from the IP network into a format suitable for transmission over a wireless network that provides voice communication capabilities, the server also translates data messages received from the mobile station over the wireless network in appropriate transmission in the network

Description

-METHOD AND SYSTEM TO PROVIDE COMMUNICATION The invention relates to a method and system for providing communication with a mobile station. More particularly, the present invention is directed to a method and system for transferring data from an Internet Protocol (IP) network to a mobile station in a non-IP network. The demand for data communication capabilities continues to grow. Individuals are increasingly looking for ways to access available data or transmit data. An example of the continuous growth of this industry is the explosion of the Internet and in particular the World Wide Web. Communications in this medium are carried out in what is commonly referred to as the HyperText Transfer Protocol (HTTP = HyperText Transfer Protocol) or Internet Protocol (IP). An example of data communication configurations that allow a user to interact with the Internet is illustrated in Figures IA and B. In Figure IA, a user, for example in the computer terminal such as a PC, 10, is connected through a modem 11 to a public switched telephone network (PSTN = Public Switch Telephone Network) 15. In REF: 27447 somewhere in that PSTN there resides an access provider 20. The access provider provides a data link 25 to the Internet, here shown as the RED-HTTP. Typically, the software referred to as a "viewer" is loaded into computer 10 and allows data communication with other data sources located in Network 30, an example of which is the Internet. Examples of these displays include Netscape's Navigator and Microsoft's Internet Explorer. The computer 10 and the data resources on the Internet 30, communicate in an open language referred to as the hypertext markup language (HTML = hypertext mark-up language). While this configuration is very useful for the user it has some limitations, in order to access information from the Internet the user must have a computer such as a PC or laptop (laptop), for example to be able to communicate with the Internet.

In addition, it requires a wired connection to the PSTN to provide Internet access. This limits somewhat the user's ability to access the Internet. Figure IB represents a proposed attempt to provide a wireless connection from a user to the Internet. Under these circumstances, the user has a wireless communication device 100 that communicates by air with a base station 110. The base station is part of a wireless data network referred to as the network data in digital cellular packets (CDPD = cellular digital packet data) 120. A special server 130 acts as an interface between Internet 140 and the CDPD network. An example of the communication device 100 is the AT &T PocketNet telephone. In the PocketNet configuration, the phone transmits information through a wireless IP network, the CDPD. Server 130 is a software platform created by Unwired Planet. The software platform uses an open language called the hand-held device mark-up language (HDML) to interactively display information on a portable device such as the PockeNet phone. The PocketNet phone viewer and the server applications support HDML. To access information or transmit a message, the user manipulates the user interface based on the menu of the telephone display, with the telephone keypad. Requests for information are routed through the wireless IP network and physical line Internet to be processed on the server where the application resides. The viewer then displays the results of the interrogation. However, there is a limitation in the PocketNet application, that is, the phone can only receive data or interact with the Internet, when the phone is in a data-only mode since the communications on CDPD are strictly data communications. The PocketNet configuration does not allow interaction with the data network or data reception while in a voice mode or in a sleep mode. It would be advantageous if a network could provide data communications to a portable device, with which the communications can be carried out while the device is in a sleep or voice mode. Another wireless communications protocol known as IS-136, TIA / EIA / IS-136.1-A October 1996; TIA / EIA / IS-136.2 October 1990, here incorporated by reference, provides a cell phone with the ability to receive short messages while in sleep mode or in a voice mode. However, messages are generated by a message center that provides appropriately formatted data to comply with the IS-136 protocol. The portable device does not communicate with an Internet data communication network. CQtiPMPIQ PB INVBTCIQM The present invention provides a method and system that improve a user's ability to communicate with an Internet-like network, using a portable device. More specifically, the present invention allows the user to communicate with a data network while it is either idle at rest or while in a voice mode. In one embodiment of the present invention, a request to transfer data from an IP network to the mobile station is received; then it is determined whether the mobile station registers in a first network. If the mobile station is thus registered, then the data is adapted to be transferred by transport by means of a teleservice which is provided in the first network and then the adapted data is transferred to the mobile station. In a more particular embodiment of the present invention, the mobile station is registered in an IS-136 network. The IP network informs a server of a desire to transfer a datagram (self-contained package) to the mobile station. If the mobile station registers in the network, then the datagram is translated into an R-Data message in the IS-136 protocol and the R-Data message is transferred to the mobile station. In a further embodiment of the present invention, the mobile station can generate a request and that request for data will be translated into an appropriate format suitable for the IP network. In response to this request, the IP network will send data back and the data will be translated into a format consistent with the teleservice network to which the mobile station is connected.

In a still further embodiment, the request from the mobile station constitutes an R-Data message to a teleservice server and the data request is translated into a suitable format for the IP network. The IP network then sends a datagram in response to the request and the teleserver server translates the datagram to an R-Data message in the IS-136 protocol. The R-Data message is then transferred to the mobile station. The data transfer between the mobile station and the IP network can be carried out while in the idle mode or voice mode. BRIEF DESCRIPTION DB THE DRAWINGS Figures IA and IB illustrate block diagrams of the configurations for data communication of the prior art. Figure 2 illustrates a block diagram representation of a data communication configuration according to an embodiment of the present invention. Figure 3 illustrates a block diagram representation of the improved server of the embodiment illustrated in Figure 2. Figure 4 is another schematic representation of one embodiment of the present invention.

Figure 5 illustrates data flow in data transfer from a data network to a mobile station according to an embodiment of the present invention. Figure 6 illustrates data flow for data transfer from a mobile station to an IP network according to an embodiment of the present invention. PBSCKIPCIQM pgTAfr fA In accordance with one embodiment of the present invention, a mobile station can receive communications from or communicate data requests to an Internet protocol network, while in a sleep or voice mode. A block diagram representation of an embodiment of the present invention is illustrated in Figure 2. In this embodiment, a user has a mobile station 200, illustrated herein as a portable device, which may be a cellular telephone that is capable of operating under the IS-136 protocol. The cellular telephone has wireless communications with a base station 210 using that protocol. The base station is part of a wireless network that can be the network of personal communications services (PCS * Personal Communications Services) or any other wireless network. The base station communicates with the network on a protocol referred to as IS-41. This PCS network exists and is already known. The IP network, illustrated here as the HTTP Network labeled cloud 250 (referred to as the Hypertext Transfer Protocol) can communicate with a portable or mobile station in the PCS 230 network, by coupling it to an Enhanced Server 245, which in turn is coupled to a Teleservice Server 240. The Enhanced Server can identify a request from HTTP for data transfer to a portable device. The Enhanced Server then points to the Teleservice Server via a communication line 242. A message center 241, which can be part of the Teleservice Server 240, can receive the data from the Enhanced Server 245. The message center then translates the data in a format for retransmitting the data to the portable device, according to the state of the mobile station. In particular, if the mobile station registers with the Teleservice Server but is in a sleep mode, then the message center can transfer data via the PCS network and the base station 210 to the mobile station 200, the data is formatted appropriately in the IS-136 protocol. A network viewer operating in an open language (for example, HDML portable device marking language) allows the display of information in the mobile station. If the mobile station is idle, this information is translated over a digital control channel (DCCH). Alternatively, if the portable device is already in voice mode, then the portable device operates on a voice channel but the messages can be formatted appropriately to interspersed with voice communications in the digital traffic channel and thus allow transfer of data to the mobile unit. Again, at this stage, the display language will control how data transfer is displayed in the mobile station. At this point, data transfers from the IP network to the mobile station have been described. However, the data transfer can originate on the contrary in the mobile station. This transfer may constitute a data request generated by a user operating the portable device 200. Under these circumstances, the -HDML operation of the mobile station recognizes a user feed or data request from the mobile station to the Internet protocol and transfers the request to the Enhanced Server. The server then takes the data request and transfers it to the IP network. In a further improvement to the data communications system, the Enhanced Server also has the ability to implement the known wireless IP service. That is, the Enhanced Server can communicate data between the IP network 250 and a portable device or mobile station communicating via the CDPD network 260, in a manner similar to that already described above with respect to the prior art. In that embodiment, the enhanced server must be able to recognize the network in which the mobile station currently registers and then must appropriately route the data information from the HTTP network to the mobile station, according to the network in which it is registered. . A block diagram of an improved server for use in the communication configuration of Figure 2 is illustrated in Figure 3. In this enhanced server 245, there are at least four basic elements, an agent 340, a dual messenger 330, an wireless IP handler 320, and an R-Data 310 message handler. The dual message receives a notification from the data network of a message to the portable device. The messenger then determines the network to which the portable device is connected and registered. The messenger, having identified the location of the station, then manages the data supply through the network to which the station is registered. This is different with respect to known IP management networks, since a dual messenger 330 must first locate the mobile station before sending a message or notification to the mobile station.

The agent 340 forms the information interface to the IP network. The agent can request notification information from the dual messenger to obtain the application in the IP network that information is transferred. The identity of the application is typically a universal resource locator (URL = Universal Resource Locator) that is contained in the notification information transmitted to the dual messenger by the application in the IP network. The agent also then receives the data from the application and then transfers it to the mobile station using either the R-Data 310 message handler or the wireless IP handler 320. The wireless IP handler operates as the wireless IP interface of the prior art. illustrated in Figure IA. The R-Data message handler has the function of locating the mobile station and providing message notifications using the R-Data teleservice available in the IS-136 protocol. An example of the operation of the communications network elements of Figures 2 and 3 in the context of data transfer is provided to clarify the understanding of these elements. In this example, the application 270 in the IP network wishes to send a message to the mobile station 200. The application first sends an notification request to the dual messenger 330. The dual messenger 230 passes the notification request together with a mobile station identifier such as the mobile identification number (MIN = Mobile Identification Number), to the data message handler R-310. The R-Data message handler 310 then generates an interrogation to the teleserver server 240 to determine whether the target mobile station is present in the IS-136 system. The teleservice server then interrogates a home location register (HLR = Home Location Register) associated with the identified target mobile station. (The HLR is not shown in the Figures of drawings). It is considered for this example that the target station 200 registers in the PCS network 230. Therefore, the HLR identifies the teleservice server 240 that the telephone is registered in the network, the R-Data message handler then verifies that a paging rate has not been exceeded and it requests that the agent have the notification data of the application through the IP network. The agent 340 obtains from the dual messenger the identifier (in this case URL) of the application and generates a request for the data from the application and transmits that request on the IP network. When the application returns the data to the agent 340, the agent provides this data to the Data-R 310 message handler, which in turn sends the data to the teleservice server and in particular, the message center on this server. The teleservice server in turn provides notification and information to a mobile switching center (MSC = Mobile Switching Center). The MSC then supplies the data to the mobile station 200 via the base station 240 and a wireless communication consistent with the IS-136 protocol. The data is transferred in one or more R-Data messages transferred over the wireless channel. Having described the general operations of the enhanced server and the teleservice server, the following provides a more detailed description of the data transfer operations being conducted. The IS-136 protocol allows certain teleservices generally referred to as on-the-air teleservices, which are additional services that involve data transfers over the wireless communications channel. An example of such teleservices is described in the co-pending U.S. patent application. Serial No. 08 / 728,275, entitled "A Method and Apparatus for Over-the-Air Programming of Telecommunication Services" (Method and Apparatus for On-Air Programming of Telecommunications Services).

The provision of message notifications and message data to IS-136 mobile stations requires the development of a new IS-136 teleservice. The proposed teleservice is a general UDP (or GUTT) transport teleservice. This teleservice transports UDP datagrams with User Datagram ProtocolRequest for Comments (RFC = Request for Comments) 768, J. Postel of an application in the IP network to the appropriate application in the mobile station, ie the viewer operating in the mobile station. The general UDP transport teleservice is sent over the IS-41 network. In particular, it is sent in part of a point-to-point message from the short message service provider (SDMPP = Short Message Service Deliver Point-to-Point) in that protocol. Specifically, the information is sent in the Short Message Service Carrier Data of said message. The teleservice server encapsulates the entry data of the R-Data message handler in the appropriate GUTT format and packages it into a transport message SMDPP IS-41. The teleserver server then directs this transport message to the mobile switching center (MSC) serving the mobile station as identified by the information in the HLR of the mobile station. The message is transferred to the MSC using the IS-41C standard short message service delivery procedures. The MSC then performs the interoperation of the SMDPP IS-41 to the over-the-air interface of Data-R IS-136. A more detailed description of the operation of the transport service is now provided in connection with the two situations, one in which the mobile station registers in the network and one mobile station that at the time of message notification does not register or is not registered. available. In the circumstance where the station is currently registered in the service system, the home system of the mobile station includes a home location register that stores information regarding the location of the mobile switching center serving the station. A dual messenger will receive a notification request from an application and pass the request to the Data-R (RDMH) message handler, along with the mobile station identifiers such as an electronic serial number (ESN = Electronic Serial Number) and / or a mobile identification number (MIN). The RDMH in turn sends a request from the teleservice server specifying the identification of the mobile station and questioning whether the station is available. The teleservice server (TS = Teleservice Server) interrogates the HLR that provides a response that the station is available. In this circumstance, the TS notifies the RDMH that the station is available. The RDMH then returns a supply request to the TS containing the mobile station identification and the data to be supplied to the mobile station. The teleservice server includes a message handler application that receives the supply request from the RDMH. Once the TS determines that it has valid address information for the identified mobile station, the TS packs the data in a GUTT message and encapsulates it in a point-to-point message for short message delivery (SMDPP). The server then sends the SMDPP message to the service MSC identified by the HLR. The service MSC receives the SMDPP message and identifies that request for a mobile station that is currently serving. The MS then sends an SPACH IS-136 notification of R-Data in the SPACH channel. The mobile station receives the SPACH notification and responds with an SPACH confirmation on the reverse channel or RACH. The MSC, upon receiving the confirmation signal, encapsulates the GUTT message in an IS-136 Data-R message in the SPACH. The MS receives the R-Data and processes the data. If the data is acceptable, the mobile station sends an acceptance message of Data-R. The mobile station then sends the received data to the display in the mobile station. It may happen that at the time when the application in the IP network wishes to send the information to the mobile station, the mobile station is not available for provision of teleservices. At this time then, after the RDMH has requested the availability of the mobile station, the HLR will identify the mobile station as "not available". The HLR will also adjust a flag to notify the teleservice server when the mobile station becomes available. In a while later, the mobile station is registered with a service MSC. The service MSC then provides information to the HLR to identify the MSC with which the mobile station is currently registered. The HLR, due to the adjusted flag, then notifies the teleservice server of the availability of the mobile station. The teleservice server in turn notifies the RDMH of the availability of the mobile station. The message transfer operation then continues as described above with respect to a station detected as available. Figure 4 provides another block diagram representation of an embodiment of the present invention, showing protocol levels associated with the respective elements in the data network. The mobile station 400 has a display-401 and a keypad 402 that can interact with a display capable of operating with the appropriate marking language. The display interconnects with the R-Data messages that are received in the IS-136 protocol, with which the mobile station communicates with the PCS network. A mobile switching center (MSC) 404 communicates with the mobile station 400 over the IS-136 protocol and can transfer the R-Data messages within that protocol. The MSC 404 creates the R-Data messages from the short message data point-to-point messages (SMDPP) it receives over the IS-41 protocol from the teleserver server 245. The teleserver server 245 translates data from a server such as a network server 420 from an Internet Protocol (IP) to an SMDPP message, which includes the data in a form usable by the mobile station. The server connects to the Internet and uses HTML. Then with reference to Figure 2, the foregoing description has focused on data transfer or data communication between the mobile station over the PCS network. However, the enhanced server can recognize or determine that the mobile station does not register in the PCS network, but instead registers in the CDPD network. In this circumstance, the enhanced server will transfer information from the agent to the wireless IP handler in the enhanced server (see Figure 3) and the data can be transferred over the CDPD network to a mobile station registered in that network. In this way, the enhanced server has the ability to recognize that an addressed or target mobile station registers with one of its multiple networks and can properly format the IP data to transfer the data to the mobile station. Figures 5 and 6 are related to implementations of messages in the GUTT service. One message relates to mobile terminated messages and another relates to mobile origin messages. The first message is a UDP delivery message which is a mobile terminated message used to supply a UDP datagram to a mobile station. The user data in the UDP datagram is binary data that can have a specific application encoding that is transparent to the teleservice. The format of the supplied UDP message is as follows: Element of Length Info ua? JÓM? Ísfi (Bits) Type Discriminator Identifies the version 2 Protocol of the GUTT protocol M Type of Specifies the type of 6 Messag message M Reference Reference Number 16 Message assigned by TS for the teleservice message H Length Element Information Usage (Bits) Type Length Remaining length of 16 Remaining UDP delivery message following this IE M (Information element) UDP header: 64 Source Port Application Port Source M Port Port Destination Application Destination Total length of bytes in UDP header and data Sum of Sum of verification for verification validate the contents of the UDP message User Data Dumps UPE ü. Figure 5 illustrates a mapping of the UDP delivery message from Data-R and SMDPP. In the IS-41 protocol, the data is placed in the SMS bearer data, SMSTID fields. In the R-Data message in the IS-136 protocol, in the mobile switching station, this information is placed in the R-Data unit. Figure 5 shows how the R-Data unit is broken down to include the HL PDU data portion and it is in this portion that the UDP delivery information is inserted. The UDP provisioning information includes a type of description as well as a UDP header and data that includes the IP data originally transmitted by the IP network. The second GUTT message is the UDP send message which is a mobile source message used to supply the network with a UDP datagram. The user data in the UDP datagram is binary data that may have application and specific coding that is transparent to the teleservice. The format of the UDP send message is as follows: Element of Length Information y_ss (Bits) smooth.

Discriminator Identifies the PrQtQColQ version of the GUTT M protocol Type of Specifies the type of Mensaie mensaie _M Reference number reference Message assigned by MS for the teleservice message 6_ M Length Remaining length of Remaining UDP delivery message after this IE M UDP header: Port Source Port of Application Source 4 M Element of Length Information USQ (Bits) Type Port of Destination Destination Application Port Total length of bytes in UDP head and data Sum of verification sum for verification validate the contents of the UDP message patQS of Ugμaxip UDP data M Figure 6 shows a mapping of the UDP supply from Data -R and SMDPP. This mapping is something like an inverse representation of the data flow in Figure 5, where a datagram is created by the mobile and placed in a R-Data unit consistent with the IS-136 protocol. This R-Data unit is included in the R-Data transmitted from the mobile to the mobile switching center in the air. The MSC extracts information from the R-Data to be placed in the appropriate SMDPP IS-41 message format. In accordance with the present invention, the mobile station is able to communicate with an IP network unnecessarily by an Internet protocol handler. It is able to communicate without having to rely on a dedicated data network such as the CDPD or based on a dedicated data channel for communication. On the contrary, the present invention provides that the data can be transmitted to the mobile station over a teleservice that allows data to be interleaved with voice information if the mobile station is in a voice mode or simply transferred over a control channel , if the mobile station is in a sleep mode consistent with the operations of the mobile station in the IS-136 protocol. As a result, the mobile station has more flexibility in its interaction with the IP network. The IP network is capable of transferring information to the mobile station under a broader set of circumstances than is available in any of the prior art configurations illustrated in Figures IA and IB. While the previous modality has focused on a translation of data from an Internet protocol network to the IS-136 protocol, it should be recognized that the present invention is equally applicable to other data exchanges between data networks and mobile stations, wherein the data format in the first network is different from the data format in the network to which the station is connected mobile. More specifically, it is possible that the present invention can be applied to provide mobile stations with data access in wide area networks or intra-networks as opposed to the Internet. Furthermore, the present invention is not specifically limited to the IS-136 protocol, but is applicable in any protocol that allows messaging to the mobile station, especially where this messaging can be interleaved with voice mode operation or it can be transmitted over some channel of voice. control while the mobile station is in a sleep mode. It is noted that in relation to this date, the best method known to the applicant to carry out the aforementioned invention, is that which is clear from the present description of the invention. Having described the invention as above, property is claimed as contained in the following:

Claims (8)

1. A method for communicating data to a mobile station, the method is characterized in that it comprises the steps of: receiving a request to transfer data from an IP network to a mobile station; determining whether the mobile station is registered in a first network; if the mobile station is registered in the first network by adapting the data to be transferred for transport by means of a teleservice that is provided in the first network; and transfer the adapted data to the mobile station.

2. A method for interconnecting a mobile station and an Internet protocol network, the method is characterized in that it comprises the steps of: receiving notification of the intended transfer of data to the mobile station; and identifying from a group of networks that network in which the mobile station is registered; when the mobile station registers with the first network, adapt data from the IP network to comply with a protocol for a teleservice in the first network; and transfer the data adapted to the mobile station by the teleservice.

3. A method for communicating a datagram from an Internet Protocol (IP) network to a mobile station, the method is characterized in that it comprises the steps of: receiving a notification from the IP network, to transfer a datagram to the mobile station; determine whether the mobile station is registered in an IS-136 network; if the mobile station registers in an IS-136 network, translate the datagram to an R-Data message in the IS-136 protocol; and transferring the R-Data message to the mobile station.

4. A method for interconnecting communications between an Internet protocol (IP) network and a mobile station, the method is characterized in that it comprises the steps of: receiving a request for data from the mobile station by means of a teleservice in a first network; transform the request into a convenient format for the IP network; transmit the transformed request to the IP network; receive a datagram from the IP network, in response to the request; adapt the datagram to comply with a protocol associated with the teleservice; and transferring the datagram to the mobile station by teleservice in the first network.

5. A method for interconnecting communications between an Internet protocol (IP) network and a mobile station, the method is characterized in that it comprises the steps of: receiving a data request on an IS-136 network from a mobile station; transform the data request into a convenient format for the IP network; receive a datagram from the IP network, in response to the request; translate the datagram to an R-Data message in the IS-136 protocol; and transferring the R-Data message to the mobile station.

6. A method for interconnecting an Internet protocol network and a mobile station connected in a voice call over a wireless communication channel, characterized in that it comprises the steps of: receiving a notification from the IP network to transfer a datagram to the station mobile; determine the mobile station to register and connect in a voice call; transform a received datagram into a format to intersperse with the voice call; and intercalating the transformed datagram with the voice call over the wireless communication channel.

7. A system for providing datagram communications between a mobile station and an Internet Protocol (IP) network, the system is characterized in that it comprises: a message notification receiver coupled with the IP network; a message handler, coupled to the message notification receiver and detecting whether the mobile station registers in a first network in response to a signal from the receiver; a data receiver, coupled with the message notification receiver and the message and receive data manager from the IP network; and a protocol transformer that adapts the data received from the IP network to a protocol for sending messages on the first network.

8. A system for providing datagram communications between an Internet Protocol (IP) network and a mobile station in an IS-136 network, the system is characterized in that it comprises: a message notification receiver coupled to the IP network; a message handler, coupled to the message notification receiver and interrogate the IS-136 network if the mobile station is registered; a data receiver; coupled to the message notification receiver and the message handler and receiving datagrams from the IP network; and a protocol transformer coupled with the message handler and receiving the datagrams, the transformer adapts the datagrams to an R-Data message in the IS-136 protocol. PgflTTM-CW ng LA INVEMCTOM The present invention relates to a teleservice server in a wireless network that provides an interface between a mobile station and an Internet protocol network, thereby facilitating data transfers between these elements. The server translates datagrams from the IP network in a format suitable for transmission over a wireless network that provides voice communication capabilities, the server also translates data messages received from the mobile station over the wireless network in appropriate transmission in the IP network.