MXPA00012450A - Headline hyperlink broadcast service and system - Google Patents

Abstract

The present invention sets forth a broadcast information service which uses broadcast radiocommunication resources to provide information to a mobile station user. First, a series of broadcast headlines may be transmitted on a broadcast resource for all mobile stations to read. These broadcast headlines are then output in a manner whereby a user can select more detailed information associated with one or more headlines. A request for selected material is transmitted back to the system. The selected material is then sent to the user using any desired information transport mechanism.

Description

HIPERENLACE DISTRIBUTION SERVICE AND SYSTEM OF HEADERS BACKGROUND OF THE INVENTION The present invention relates generally to the provision of information services in radiocommunication systems and, more particularly, to the efficient dissemination of information services in combination with radiocommunication systems and services. existing The growth of commercial radiocommunications has been dramatic in the last 15 years. Radio locators and cell phones, in particular, stand out as relatively common equipment in many urban environments. These two different types of communication devices, and support systems, have evolved from different fundamental purposes, that is, the radiolocators to traditionally provide limited information in one direction to one or more end users and cell phones to provide traditionally a two-way voice communication service. As time passes and technology advances, the lines of division of traditional functions between these two different types of radio devices have become less noticeable. The radiolocators have acquired some of the functionalities traditionally provided by cell phones, and vice versa. For example, two-way radio pads have been developed Senses that allow the pager user to transmit messages to the pager system, such messages can then be transmitted to other parties. Similarly, cell phones have acquired the ability to transmit and receive short text messages (of the order of 160 alphanumeric characters) that can be produced on the display screen of a cell phone. This evolution of radio communication devices has led to the development and commercialization of a large number of new information devices. For example, radiolocation systems have been implemented that offer the diffusion of information services, for example, quotation information services in the stock market, to a large number of subscribers who have paging devices with display devices. These radiolocators periodically receive information through an air interface associated with a large number of securities or other financial instruments such as options, futures, etc., and display the current prices of these financial instruments in such a way that a user can Track the performance of your portfolio. The applicant anticipates that cell phone users may be interested in supplying cellular information services in cellular telephone networks. However, cellular systems, unlike radiolocation systems, have been conventionally designed around the paradigm of (1) limited bandwidth due to a restriction in terms of the spectrum assigned by several governmental entities, for example, FCC, for cellular applications and (2) the notion that most of the limited bandwidth should be reserved for point-to-point conditions (eg, voice connections) between cell phones and the system, with only a relatively small fraction reserved for the diffusion, that is, transmissions from point to multiple points from the system to the cell phones that operate in the system. Due to this characteristic of cellular systems in particular, system designers are very careful as to the amount of information transmitted in the available broadcast channels and the frequency and with which this information is repeated. Thus, the provision of broadcast information services to cellular radio systems can not easily be achieved through the more direct approach of simply broadcasting any desired information so that all subscribers have it in view on their cell phones. Consider, for example, a TDMA cellular radiotelephone system where each radio frequency is divided into a series of time segments, each of which contains a burst of information from a data source, i.e., a digitally coded portion of a speech conversation. Multiplexing in time the bursts associated with different sources, more than one channel can be supported on each radio frequency. The time segments are grouped into successive TDMA frames, which have a predetermined duration. The number of time slots in each TDMA box refers to the number of different users that can simultaneously share the radio channel. If each segment in a TDMA frame is assigned to a different user, the duration of a TDMA frame is the minimum amount of time between successive time segments assigned to the same user. The successive time segments assigned to the same user, which are generally not consecutive time segments in the radio bearer, constitute the digital traffic channel (DTC) of the user. As mentioned above, it is typically a point-to-point resource and, in fact, most TDMA systems preserve most of the radio channels available for use, DTCs to ensure high traffic capacity. However, as described in more detail below, digital control channels (DCCHs) are also provided to communicate control signals and as general information, including a mechanism for connect to the radio system and for the assignment of a DTC. Similar types of resource assignments are found in other types of similar systems. For example, in code division multiple access (CDMA) systems, pipelining is effected by spreading data associated with a particular connection using a unique spreading code, this code, unlike or in combination with frequency differentiators and of time, offers the receiver a mechanism to extract its expected data, that is, by correlating the received composite signal with the code assigned to its traffic channel. Like TDMA systems, CDMA systems can also offer broadcast control channels or other general signaling channels assigned known codes. However, like TDMA systems CDMA systems also tend to reserve more resources (for example, codes and powers) to dedicated traffic channels than to broadcast information channels. Certain broadcast information services exist today, even though these existing services are specialized services not integrated with traditional cellular voice communication systems and which have significant drawbacks associated with such integration. For example, in the context of packet data services, for example, CDPD example that is deployed in the North American cellular spectrum, there is a service designed around a web browser of reduced content of efficient coding. Using this service, the subscriber will be able to read a small amount of text represented in response to user requests, that is, explicit access to the system, on a relatively small screen (for example, less than 10 lines of text). Each page presented on this screen can have content that can be selected additionally For example, a pager with stock market quote service displayed may contain a small list of company names If the user selects a particular company using the keyboard , a request is sent on air using the CDPD service to a special server in the network, the service sends a new page with the requested information, this CDPD service resembles the traditional wire based WEB Internet service, the difference is that the special server connected to the CDPD system uses a special language in order to very efficiently present a small amount of information to the user.The special server can extract text information from a traditional WEB page and remove the images, color, etc., which requires a high bandwidth, the text is then reformatted ado and redecoded more efficiently in terms of bandwidth than the HTML language used to describe the ^ fc information in its original WEB page form, before transmission to the remote unit. 5 This micro-droplet concept has evolved from its original form used in CDPD to what is known as Wireless Application Protocol (WAP). The basic concept, however, remains the same. WAP is designed to be independent of - 10 air interface (for example, GSM, IS-136, CDPD, etc.) and offers greater flexibility and greater resource efficiency. Another technique used in current wireless systems is the construction of a dedicated system for recovery of information, for example, the radiolocation systems described above. Unlike cellular systems, in radiolocation systems, the basic service (and perhaps the only service) provided is the information dissemination service. All the available information is disseminated to wireless systems as part of the broadcast service. There is no option to request additional information. This approach to the radiolocation system requires a significant RF bandwidth since all the information must be disseminated or, alternatively, and More realistically, the amount of information to which the user can access must be limited. The balance ^ between the amount of data available to the subscriber, (for example, how many stock symbols / stock prices are transmitted) and the time required by the user to acquire the entire set of information (for example, how long it takes). required for the user to receive and travel through the predetermined number of symbol / stock prices) must be made by the service provider. In addition, 10 all the users obtain the same information, there is no way to adapt the information for particular users. The previous CDPD / WAP approach requires the user to make an initial access to the system, that is, a WEB request. The WEB user, similar to the use of traditional WEB, 15 stores "bookmarks" of "pages" of interest. The user typically initiates "an access to a particular service, for example, to a" bookmark. "The drawback with this approach is that if a particular event occurs, the user does not obtain the information unless group the service, for example, a news service. In the approach of WEB Internet based on traditional wire, the solutions to problems by the introduction of a service of "push" where the service based on the network transmits information to the user that is typically updated with shape the underlying data. Complications of actions, news events, sports results are technical applications for push service. A "flag" can be assigned to a personal computer that is constantly updated with, for example, stock market quotes. However, in these wire-based push services, users must be connected to the system from the service server perspective, which uses system resources. In addition, since these "push" services are wire based, they typically transmit all the available information desired in relation to the indicated topics at one time, which requires a significant bandwidth in a radio telecommunications application. Accordingly, it would be desirable to provide techniques and systems that can provide broadcast information services within the limitations of existing cellular radio systems. In particular, it would be desirable to design diffused information techniques and systems in such a way that they can cavity the end-user's desire for a relatively large ratio of data that may need relatively frequent updating, while minimizing the use of scarce channel resources. of diffusion. This system must overcome the disadvantages of traditional radiolocation systems in terms of bandwidth utilization, without requiring Users make specific requests to the system before receiving a given information. COMPENDIUM OF THE INVENTION Exemplary embodiments of the present invention offer techniques that support information services disseminated through radio communication systems by efficiently using a broadcast resource. The present invention minimizes the diffusion resource capacity that is consumed by the information service disseminated by initially broadcasting only a small heading or compendium of a topic, for example news provided in the form of a hypertext. The hypertext can be a link (ie a URL) with a WEB site or just a marker for the local cellular system identifier that provides the server with the necessary information to locate and retrieve the entire text associated with the header. If the user selects the header, an automatic request is generated in the mobile station, using for example data services in packets or an SMS service to request the full text of the selected theme. The request for the complete content may contain a destination address to which the server may send the detailed information, said destination may be, for example, the cellular identifier of the mobile station or another device, for example, office email address or fax number in a hotel. The destination address can be specified as a raw address field plus an identifier type field that identifies the type associated with the raw address field, for example, an email address, a fax number, an identifier mobile cellular, etc. By initial dissemination only of a header or a compendium of a subject, only a small amount of scarce cellular diffusion bandwidth is required, or equivalently, the time to acquire the subset of detailed information that a particular user may require is reduced to the extent that it is possible to send the detailed information using a broadcast channel in a cellular radio telecommunications system. According to exemplary embodiments of the present invention, no transmission is required by the mobile station to obtain the header information, an access is made only if the user requests the detailed information. The present invention employs a combination of broadcast channels and point-to-point channels in order to make efficient use of the frequency spectrum and provide an easy to use and flexible service to the end user. BRIEF DESCRIPTION OF THE DRAWINGS The aforementioned objects and characteristics of the present invention will be more apparent from the following description of the preferred embodiments with reference to the accompanying drawings in which: Figure 1 illustrates a generalized view of a digital control channel (DCCH) having several segments grouped in superframes; Figure 2 illustrates an exemplary radiotelephone system in which the present invention can be implemented. Figure 3 illustrates a hyperframe structure that can be used to implement the present invention; Figure 4 illustrates the logical channels of the DCCH that can be employed to implement the present invention; Figure 5 represents an exemplary format for a broadcast header hyperlink; and Figure 6 shows a block diagram of a system architecture that can be used to implement exemplary embodiments of the present invention. DETAILED DESCRIPTION The following description is written in terms of a cellular radiotelephone system, but it will be understood that the applicant's invention is not limited to this environment. In addition, the following description is written in the context of TDMA cellular communication systems that comply with IS-136, but (as mentioned above) it will be understood by the person skilled in the art that the present invention can be implemented. in other applications of digital communications including applications designed in accordance with other A standards, for example, GSM or PDC, and the applications that CDMA employs as an access methodology, for example, IS-5 95 Particularly exemplary embodiments of this invention describe techniques and systems for providing broadcast information services whose purpose is to minimize the use of relatively broadcast resources ^^ 10 few available in existing cellular radiotelecommunications systems. Accordingly, these exemplary embodiments are described using the broadcast resources available in IS-136, particularly that of diffusion SMS channel (S-BCCH). Some of the details associated with the 15 IS-136 systems generally and the broadcast SMS channel specifically are described below, while Others are omitted to avoid obscuring the present invention. In addition, the interested reader is referred to in U.S. Patent No. 5,603,081 to Raith et al and the application in North America patent no. of series 08 / 482,754 also by Raith et al for additional information regarding systems related to IS-136 in general and diffusion SMS techniques specifically, respectively. The disclosures of both the US patent and the US patent application mentioned above are incorporated expressly here by reference. Figure 1 shows a general example of a direct (or downlink) DCCH configured as a succession of time segments 1, 2, ..., N, ... included in the consecutive time segments 1, 2. . . sent on the carrier frequency. These DCCH segments may be defined in a radio channel, for example in accordance with that specified by IS-136, and may consist, as shown in Figure 1, for example, of each n-th segment in a series of consecutive segments. Each DCCH segment has a duration that may or may not be 6.67 sec, which is the duration of a DTC segment in accordance with the IS-136 standard. As shown in Figure 1, the DCCH segments can be organized in superframes (SF), each superframe includes several logical channels carrying different types of information. One or more DCCH segments can be assigned to each logical channel in a superframe. The exemplary downlink superframe in FIG. 1 includes three logical channels: a broadcast control channel (BCCH) that includes six successive segments for general messages; a radiolocation channel (PCH) that includes a segment for radiolocation messages; and an access response channel (ARCH) that includes a segment for channel assignment and other messages. The time segments The remaining ones in the exemplary superframe of FIG. 1 can be dedicated to other logical channels, such as, for example, f additional radiolocation channels or other channels. Since the number of mobile stations is usually greater than the number of segments in the superframe, each radiolocation segment is used to radiolocate several mobile stations that share some unique feature. For example, the last digit of the MIN. Figure 2 depicts a block diagram of an exemplary cellular radiotelephone system, including an example base station 110 and a mobile station 1290. The base station includes a control and processing unit 130 connected to the MSC 140 which in turn is connected to the PSTN (not illustrated). General aspects of cellular radiotelephone systems of this type are known in the art in accordance with what is described in US Pat. 5,175,867 to Wejke et al, entitled "Neighbor Assisted Handoff in a Cellular Communications System "(transfers assisted by neighboring cells in a cellular communication system) and in the US patent application no. 07 / 967,027 entitled "Multi-mode Signal Processing" (Processing of the mui-modal signal), presented on October 27, 1992, both incorporated in this application by reference.

The base station 110 handles several voice channels through a voice channel transceiver 150 controlled by the control and processing unit 130. Likewise, each base station includes a control channel transceiver 160, which could handle more than a control channel. The channel transceiver 160 is controlled by the control and processing unit 130. The control channel transceiver 160 broadcasts control information in the control channel of the base station or cell to mobiles connected to this control channel. It will be understood that transceivers 150 and 106 can be impiemented as a single device, such as for example the voice and control transceiver 1270 for use with DCCHs and DTCs that share the same radio bearer frequency. The mobile station 120 receives the information broadcast on a control channel on its voice and control channel transceiver 170. Next, the processing unit 175 evaluates the received control channel information, which includes the characteristics of the cells that are candidates for the mobile station to connect, and determines in which cell the mobile station should be connected. Advantageously, the received control channel information not only includes absolute information as to the cell with which it is associated but also contains information in relation to other cells near the cell with which the The control channel is associated, in accordance with that described in U.S. Patent No. 5,353,332 to Raith et al, entitled "Method and Apparatus for Communications Control in a Radiotelephone System" (Method and apparatus for communication control in radiotelephone system ), which is incorporated in this application by reference. The mobile station 120 also includes an input device 185, such as a numeric keypad, which allows a user to interact with the mobile station. A display device 190, such as an LCD screen, offers a device for displaying the information to the user. The mobile station also includes a memory 180. In exemplary embodiments of the applicant's invention, the transmission of the information broadcast from base stations to mobile stations is structured in successions of different types of logical frames. Figure 3 illustrates the frame structure of a direct DCCH (from base station to mobile station) in accordance with IS-136 and shows two successive hyperframes (HF), each of which preferably comprises a respective primary superframe (SF ) and a respective secondary superframe. It will obviously be recognized that a hyperframe can include more than two superframes.

In Figure 3, 3 successive superframes are illustrated, each comprising several time segments organized as logical channels F-BCCH, E-BCCH, S-BCCH, and SPACH, which are described in more detail below. At this point, it is sufficient to note that each superframe in a direct DCCH includes a complete set of F-BCCH information (ie, a set of Layer 3 messages) using the necessary number of segments, and that each superframe begins with a segment F-BCCH. After the F-BCCH segment or the F-BCCH segments, the remaining segments in each superframe include one or more segments (or no segments) for the logical channels E-BCCH, S-BCCH, and SPACH. With reference to Figure 3, and more particularly to Figure 4, each superframe of the downlink (direct) DCCH preferably comprises a broadcast control channel BCCH, and a short message service / radiolocation / access channel SPACH . The BCCH comprises a fast BCCH (the F-BCCH illustrated in Figure 3); an extended BCCH (the E-BCCH); and a short message service BCCH (the S-BCCH), some of which are used, in general, to carry generic information related to the system from the base stations to the mobile stations. The logical channel F-BCCH carries critical system information in terms of time, such as the structure of the DCCH, other parameters that are essential for accessing the system, and a change marker of E-BCCH that is described in greater detail in the US patent application no. 08 / 482,754, commonly assigned and incorporated herein by reference; As indicated above, a complete set of F-BCCH information is sent in each superframe. The E-BCCH logical channel carries system information that is less critical in time than the information sent in the F-BCCH; a complete set of E-BCCH information (i.e., a set of layer 3 messages) can span several superframes and does not have to be aligned to start in the first E-BCCH segment of a superframe. The analogue of S-BCCH carries widespread short messages, such as information on stock in the stock market, announcements and other information of interest to various classes of mobile subscribers. In accordance with exemplary embodiments of the present invention, this logical channel can be used to support information services in two groups, where headings or summaries are broadcast continuously and more detailed information can be disseminated at the request of the interested party. A hyperlink service of example headers In accordance with the present invention, short descriptions of text, such as headers, summaries, can be transmitted in the S-BCCH or a sub-channel of same. topics or similar. Recognizing that diffusion resources in existing cellular systems are scarce, the applicant contemplates potential situations in which the S-BCCH or partner ground (s) in other types of system has its bandwidth allocated among several service providers. dissemination information, such as stock quote services, sports information services, etc. Different types of service can be transmitted efficiently in several ways. For example, when the information associated with a particular service consists of a set of values that must be updated, for example, actions, sports, weather, and travel, etc., the information can be channeled and coded to optimize the use of bandwidth in accordance with that described in the North American patent application co-pending serial number of the applicant entitled "Channelization and Encoding for Text Information Services Transmitted Via Radiocommunication Systems" (Channeling and coding of text information services transmitted by radiocommunication systems), filed on July 10, 1998, the disclosure of which is incorporated herein by reference. However, certain desirable information may not readily lend itself to the techniques described herein. For example, news services, which have headers and articles that can change completely in a matter of hours and have long detailed reports are not easily adaptable to dissemination through a series of hierarchical channels. The present invention offers techniques in relation to these 5 types of information services disseminated. Initially, the system broadcasts a series of short messages received by the remote device and used as selectable hyperlinks. These hyperlinks can be displayed on a remote device, for example, a mobile phone, a Wireless PDA, etc. For example, consider a user who wants to follow developments in the world of telecommunications. The user can subscribe to a broadcast information service that provides data on various topics, including telecommunications and transmits the following messages (perhaps using some coding) in an S-BCCH sub-channel, said messages (or portions of them are subsequently displayed on the screen of a user's mobile telephone, as follows: 20 ERICSSON ACQUIRES MICROSOFT (link id), LUCENT BAJAN ACTIONS (link id), INVESTMENT AT &T (link id), IS-136 IN CANADA (link id), ... As you can see, part of the message information broadcast on the S-BCCH subchannel associated with the service is a brief text message description informing the users of the content of the detailed information available (this information has not been disseminated), which can be ^ B display a short text message portion through selection. Another portion of the information transmitted may be a link identifier that could, for example, be a valid World Wide Web address (URL). The link identifier may or may not be displayed for selection. Thus, alternatively, a visualized set of messages can be the following: 10 LUCENT ACTIONS DOWN AFTER THE ANNOUNCEMENT OF THE ACQUISITION OF THE MOTOROLA WIRELESS SYSTEM DIVISION, ... etc. In this last example, the link identifier is not specifically visualized and, instead, the underline to indicate to the user the information associated with a link. Thus, in this last example, two links are identified for a subject. Obviously, any visible indicator, such as enhanced, can be used. Alternatively, the relationship between a hyperlink and the text displayed can be provided through a score, such as the selection of text between commas that results in the activation of a single hyperlink. In any of these exemplary embodiments, the selection of a display portion to activate a hyperlink can be achieved from any desired way, such as placing the cursor under any letter in the expression or, using a touch-sensitive screen, pointing to the link area that you want. In addition to the brief description and the link identifier, the system may broadcast an indicator as to the size of the detailed information associated with each link identification. This could allow the user or mobile station to determine how detailed information associated with the link should be downloaded based on its size. For example, relatively small detailed information regarding its size may employ a lower bandwidth service, such as a point-to-point SMS, whereas in the case of a larger data block associated with link, a data service can be selected by a user or by a mobile station in a preprogrammed manner, for example, the user has preselected that data files smaller than approximately 1 kbyte are sent via point-to-point SMS while data files exceeding 1 kbyte must be sent to your e-mail address or sent by establishing a packet data connection or circuit in the radio system. The mobile station can automatically read the size indicator associated with a link selected by a user to determine the downlink mode of supply for the detailed information identified by the hypertext link. Alternatively, the size identifier can be displayed with the following small text description: ERICSSON BUYS MICROSOFT (22 kB), LUCENT ACTIONS DOWN (lOkB), INVESTMENT OF AT &T (45 kB), IS-136 IN CANADA (180 kB), The user can select one of the hyperlinks displayed, for example, by scrolling through the list with a cursor and pressing a selected key when the cursor is below a portion of the hyperlink displayed or simply touching the hyperlink portion of the displayed message if a touch-sensitive screen is used on the remote device. Then, the user can be presented with a request message to select a delivery address for the detailed information, for example, from a list that includes his electronic mail, a fax number, etc., or that he enters one direction. In addition, the transmission format of the detailed data associated with the link may vary according to the output device associated with a downlink delivery mode. For example, if the user or the mobile station selects a mode of SMS delivery, then a first set of intensive information may be provided. low bandwidth. Alternatively, if a delivery mode is selected via e-mail or fax, a second set of higher bandwidth information can be provided. In this context, consider typical web sites that can be graphics / video intensive. If a user selects a hyperlink associated with a web site of this type, then the graphics can be deleted and only the sent text is selected if it is supplied by SMS, while all the graphics / video can be supplied if selected a higher bandwidth service, for example, email. Since the headers are periodically broadcast by the system, a remote user does not require access to the system, for example, traffic channel request, to read the headers. This avoids the use of upstream control channel or packet data channel capacity to browse the headers. In addition, users do not have to connect to the service server to obtain the headers, which avoids the demand for resources from the radio communication system. Users are instead activated for a set of header services for example, receiving a corresponding set of coding keys that can, for example, be sent through the air interface or entered by the user through a keyboard . The coding keys can be changed regularly, for example once a month. In this way, the service provider that does not have to be the same as the operator of the cellular system, can make sure that only paying customers get access to specific broadcast services. For additional information regarding exemplary techniques to control access to this type of broadcast service, the interested reader is referred to the provisional US patent application serial number, by Alex K. Raith, entitled "Broadcast Service Access Control" (Control of access to broadcast services), presented on July 10, 1998, the disclosure of which is incorporated herein by reference. The delivery of the corresponding detailed information, after selection by the user of a hyperlink, may have an additional cost imposed by the service provider or may be included graphically as part of the subscription to the header service. In accordance with the description, exemplary embodiments of the present invention overcome the deficiencies of the known systems by (1) providing summarized information with a broadcast service and (2) providing detailed information in response to a user's request. The set of headers or topics for diffusion can be grouped into sets of services to which you can subscribe based on payment per session. For example, a provider of Services can broadcast a series of news headings in one sub-channel of S-BCCH, while another service provider broadcasts travel headings in a second sub-channel of S-BCCH. Only the subscribed services are available to the mobile user, that is, the mobile user can subscribe to a service and be able to read a corresponding broadcast subchannel, but? Or others. For the presentation of the headers by the user, and particularly for the presentation of the detailed information, the remote device may be equipped with a local short range communicator with a portable computer, for example, a wireless link of infrared or local low power. As mentioned above, the request for detailed information may contain a destination address. The type of address and destination can implicitly dictate the mechanism to be used by the system to send the detailed information. This mechanism can be, according to what is described above, an SMS message, or a packet data connection or circuit switched (for example, CDPD or GPRS in the GSM system). Alternatively, the request for detailed information may explicitly request a particular mechanism through which the detailed information should be sent. The address and destination can obviously be the same or an address different from the address associated with the remote requesting device. For example, the user may wish to direct the carved information to a fax to a hotel or as an email to his office email system instead of directing it to his mobile phone, in which said applicant has moved to through the headers and you have selected a particular item for which you want to receive detailed information. The user can adjust the remote device to wait for a specific indication, for example, a series of special keys, copies of the user before sending a request to the system for detailed information. In addition to the manual interaction with the broadcast service, an automatic interaction may also occur. For example, the user can adjust a trigger in relation to specific topics, for example, if a share price reaches a certain level. When the triggered condition occurs, the remote device may be set to automatically request detailed information to an address by default. When the detailed information is available on the mobile device or on a related device, the user is informed. Another exemplary triggering is the appearance of a specific word or several specific words in the disseminated headers, for example, ERICSSON. The remote device can examine continuously, or at regular intervals the headers disseminated to determine if the trigger word is present. The remote device can alert the user when the triggering event has occurred, thus allowing the user to decide whether detailed information should be requested or it can be adjusted in such a way that it automatically requests the associated detailed information when it recognizes the keywords in the summaries of short texts or headings. In addition to the automatic triggering of hyperlinks based on predefined words or expressions transmitted in descriptions of short texts in the broadcast channel, triggering by category can also be used. The broadcast information may have, in addition to the text message, link identifier and possibly size of the associated detailed information, a category field. This exemplary form for a broadcast header hyperlink transmission is illustrated in Figure 5. For example, a category field value of 001 may indicate that the following text message, and associated detailed information, have been classified as news, while that a field value of category 002 may indicate that the next text message, and the associated detailed information, refer to sports. This field can also used for an automatic hyperlink activation, for example, for all headers associated with a predetermined category value, detailed information may be requested. In addition to providing automatic hyperlink selection, requests for additional information can be accumulated by the remote device before sending a request, for example, in a control channel for detailed information associated with several hyperlinks. Obviously, the remote device can also send requests as hyperlinks are selected (either manually by the user or based on some preprogrammed triggering function in accordance with what is described above), however, by joining several requests, it becomes possible to select several issues before making a single access to the system, which in turn reduces congestion and increases the efficient use of bandwidth. Each broadcast header and its associated link identification may have several associated detailed information files. For example, links to broadcast services associated with a newspaper may have several articles on a daily basis, for example, available on a particular website. In a case of this type, in accordance with exemplary embodiments of the present invention, it is possible to reduce the amount of information transmitted back in the uplink by a mobile station user in his request, when the user wants several files of detailed information from the same source or location. This can be achieved by providing local identifier number instead of repeating complete addresses of links, which can then be transmitted as part of the request. For example, if the hypertext link broadcast by the system provides local numbers 1-6 and the mobile station returns the genetic hypertext link address as its request without local numbers, then the system may consider that the mobile station desires the 6 detailed information elements. Alternatively, if the mobile station sends the generic hypertext link with local numbers 1 and 2, then the system knows the two detailed information files desired by the mobile station without repeating the entire address associated with the website or source. The interpretation of local numbers may be supported by the cellular switch and may require routing. As mentioned above, the broadcast service provider and the cellular network operator may be different entities and may have different equipment, said equipment must be employed in various ways to provide broadcast information services in accordance with the present invention.

We consider the exemplary system architecture illustrated in Figure 6. There, the service provider equipment 60 is linked through a communication network 62, eg, the Internet, to a radio network in accordance with that represented by the center mobile switching (MSC) 64. The MSC 64 may have connected there (or integrated) a special service server 66 to handle broadcast information services. The MSC 64 is connected to several radio base stations (RBS) 68, only one of which is illustrated in Figure 6 for simplicity. One or more radio base stations 68 support radiocommunications with a remote device, such as, for example, a mobile station 70. According to an ej modality > The contents disseminated to support a hyperlink service of headers disseminated in accordance with what is described above are stored locally, for example, on the service server 66. This information can be downloaded initially through the Internet 62 from the computer of service provider 60 when an agreement is reached between the network operator and the service provider. In any case, in this case, the server server 66 handles the supply of information to be broadcast by RBS 68 in one or more broadcast resources, such as S-BCCH subchannels. The service server 66 it also processes requests for detailed information transmitted from the remote device 70. Since the service server 66, in this mode, is handling the complete exchange of information without interaction with the service provider equipment 60, local numbers may be broadcast by the system and employees on requests by the remote device. According to another exemplary embodiment of the present invention, the information broadcast by the radio communication system is stored externally, that is, in the service provider equipment 60. In this case, the service server 66 can act as a passing translator requests for information to a server provider equipment 60. For example, the service server may store a map of link identifiers in its memory, each of which is assigned a different local number. The server server can then broadcast text message headers and local numbers as link identifiers. When a detailed information request is returned, along with a local number, the service server 66 translates the local number into an explicit link identifier, which the service provider team 60 will understand, and sends the request for detailed information. In this exemplary embodiment, the service server 66 can also handle the information in packets and the delivery of the detailed information after its delivery by the service provider equipment 60 through the communication network 62. In accordance with a third exemplary embodiment, the service server 66 can be removed and the service provider equipment can provide the totality of the desired intelligence to form information packages to be disseminated in a particular sub-channel (particular sub-channels) and handle requests for detailed information. In this exemplary embodiment, the MSC 64 accepts the dissemination of header information directly from the service provider equipment 60 and passes the requests. The service provider team 60 may group the information into categories according to what is described above. While the present invention has been described in relation to a stock exchange listing service, one skilled in the art will observe that the invention can also be applied to other systems of this type wherein the information is disseminated to a user. For example, even though the above exemplary embodiments focus on the production of headings as a short text message on a display device, those skilled in the art will note that it can be produced as a voice using an SMS-to-speech converter. In addition, even when it is desirable to provide a selection capacity for information In addition, a read-only device can be used to read the broadcast headers. In addition, the way in which logical channels are linked to existing channel structures can easily vary and adapt to different systems. Many variants and combinations of the techniques taught above can be designed by a person skilled in the art without departing from the spirit or scope of the invention described in the following claims.

Claims (2)

1. CLAIMS In a radio communication system having a broadcast resource, at least one mobile station having a display device and an input device, a method for providing an information service to said mobile station, said method comprises the steps of : transmitting a text message that includes one or more links with additional information elements and a size identifier associated with each of these additional information elements; displaying said text message including said link or said links and said size identifier associated with each of them; Selecting one or more of said displayed links associated with said text message; and Send a request, to said radio communication system, for information associated with said selected link or said several selected links. The method according to claim, wherein said diffusion resource is a sub-channel of an S-BCCH in a TDM radio communication system. The method according to claim 1, wherein said diffusion resource is a diffusion resource CDMA. The method according to claim 1, wherein said step of transmitting further comprises the step of: transmitting, with said text message, one or more link identifiers associated with said link or said several links. The method according to claim 4, further comprising the step of: presenting, with said text message, said link identifier or said various link identifiers. The method according to claim 1, wherein said selecting step further comprises the step of: touching a part of the display device to select said link or said various links. The method according to claim 1, wherein said step of sending a request further comprises the step of: including in said request said link identifier or said several link identifiers associated with said selected link or said selected links and a destination address for said additional information. The method according to claim 1, wherein said step of sending a request further comprises the step: include in said request said link identifier or said link identifiers and a destination mechanism for said additional information. The method according to claim 8, wherein said destination mechanism is SMS from point to point. The method according to claim 8, wherein said destination mechanism is electronic mail. The method according to claim 7, wherein said destination directory is different from an address associated with said remote station. The method according to claim 1, wherein said step of transmitting further comprises the step of: transmitting, with said text message, a category field. The method according to claim 1, wherein said selecting step further comprises the step of: automatically selecting said link or said several links by recognizing, in said mobile station, a keyword in said text message. The mobile station according to claim 12, wherein said selecting step further comprises the step of: automatically selecting said link by recognizing, at said mobile station, a value default in that category field. The method according to claim 8, further comprising the step of: selecting a first destination mechanism if a size of said additional information is smaller than a predetermined amount and otherwise selecting a second destination mechanism. The method according to claim 15, wherein said first destination mechanism is point-to-point SMS and said second destination mechanism is a packet data connection. A mobile station comprising: a device for receiving, while in idle mode, a header hyperlink transmitted in a broadcast resource and a size identifier associated with said header hyperlink; a device for producing a text message associated with said header hyperlink and said size identifier; a device for selecting said hyperlink of headers; and a device for transmitting a request for additional information associated with said header hyperlink and said size identifier. 18. The mobile station in accordance with the claim 17, wherein said header hyperlink is provided from one or more information service providers that provide one or more header services that said mobile station may receive. 19. The mobile station in accordance with the claim 18, wherein said hyperlink of headers, said identifier of sizes, and said additional information are in encoded form. The mobile station according to claim 18, wherein said receiving device is further configured to receive one or more coding keys corresponding to said header service or said various header services. 21. The mobile station in accordance with the claim 20, wherein said coding key or said various coding keys are provided using OATS. 22. The mobile station in accordance with the claim 21, wherein said selecting device further includes a numeric keypad, and wherein said encoding key or said plural encoding keys are provided using a numeric keypad. 23. The mobile station in accordance with the claim 22, wherein said coding key or said coding codes are periodically changed. 24. The mobile station according to claim 23, wherein said device for transmitting said request is configured to transmit said request when one or more additional requests are accumulated. 25. The mobile station according to claim 18, wherein said header service or said various header services are provided in one or several groups in accordance with the theme of the headers. 26. The mobile station according to claim 25, wherein said mobile station subscribes independently to each of said group or said various groups in accordance with subject headers. 27. The mobile station according to claim 26, wherein said diffusion resource is divided into one or several logical sub-channels and where each of said one or more groups is transmitted in a sub-channel separate from said logical sub-channel or said various logical sub-channels. 28. The method according to claim 1, wherein said link is a Universal Resource Locator. (Universal Resource Locator). 29. The method according to claim 5, wherein said display step further includes the step of displaying one or more text messages having one or more link identifiers associated therewith and a cursor. 30. The method according to claim 29, wherein said selecting step further includes the step of moving said cursor to a particular link identifier of said link identifier or said multiple link identifiers to select said particular link identifier of said said link identifier. link identifier or said various link identifiers. The method according to claim 29, wherein said display step further includes the step of displaying said text message or said various text messages and said associated link identifier or said various associated link identifiers and size identifiers in a list. 32. The method according to claim 31, wherein said selecting step further includes the step of flicking said cursor through said list to identify a particular identifier of said link identifier or said various link identifiers to be selected. 33. The method according to claim 32, wherein said selecting step further includes the step of selecting said particular identifier of said link identifier or said various identifiers. link by hooking a selection key. The method according to claim 7, wherein said step of sending a request further comprises the step of: Providing a request message for said destination address. The method according to claim 34, wherein said step of sending a request further includes the step of: Providing a request message for a delivery format for said additional information. The method according to claim 34, wherein said step of providing a request message for said destination address further includes the step of selecting said destination address from a list of one or more destination addresses. The method according to claim 35, wherein said delivery format includes a text-only SMS format. The method according to claim 15, further comprising the step of selecting a first delivery format if said size of said additional information is less than a predetermined amount or otherwise selects a second format of delivery. The method according to claim 38, wherein said first delivery format is a point-to-point SMS format and wherein said second delivery format is a packet data connection. The method according to claim 7, wherein said destination address is preprogrammed. The method according to claim 40, wherein said delivery format is based on said preprogrammed destination address. The mobile station according to claim 71, wherein said mobile station further comprises a local communication link. A radiocommunication system comprising: A dissemination resource; and At least one mobile station that includes a transceiver and a display device, said at least one mobile station is configured to: Receive information disseminated from said broadcast resource, said broadcast information includes an information element having one or several links with one or more additional information elements associated with said received information and a size identifier associated with said additional information; Request such additional information or such additional information by selecting one or more of said link or said links; The radio communication system according to claim 43, wherein said mobile station further includes an input device and wherein said mobile station is further configured to provide a destination address for sending said requested additional information or said additional information requested. The radio communication system according to claim 44, wherein the mobile station further includes a local communication link and wherein said destination address further includes a destination address for said local communication link. The radio communication system according to claim 45, wherein said mobile station is further configured to wait for an input from said input device before making said request for said additional information or said various additional information. The radio communication system according to claim 45, wherein said mobile station is further configured to activate a predetermined activation condition. 48. The radio communication system according to claim 46, wherein said predetermined activation condition includes said information element containing a predetermined value. 49. The radio communication system according to claim 48, wherein said information element includes a header and wherein said predetermined value includes one or several words included in said header. 50. The radio communication system according to claim 47, wherein said predetermined value further includes a category. 51. The radio communication system according to claim 50, wherein said mobile station is further configured to provide an alert when said predetermined activation condition occurs. 52. The radio communication system according to claim 51, wherein said alert further includes a request message to determine whether said mobile station must request said additional information or said various additional information. 53. The radio communication system according to claim 47, wherein said mobile station is further configured to request said additional information or said various additional information. when said predetermined activation condition occurs. The radio communication system according to claim 53, wherein said additional information or said various additional information is broadcast to a predetermined destination address when said predetermined activation condition occurs. The radio communication system according to claim 54, wherein the alert further includes a notification that informs when said additional information element or said various additional information elements are available. The radio communication system according to claim 55, wherein said mobile station is further configured to associate each of said additional information element or said several additional information elements with a local identifier. The radio communication system according to claim 56, wherein said mobile station is further configured to request one or more of said additional information or said additional information through one or several local identifiers. The radio communication system according to claim 57, wherein said mobile station is further configures to request all of said additional information or said additional information if said local identifier or said several local identifiers is not provided. 59. The radiocommunication system according to claim 43, wherein said broadcasting resource further includes a service server and wherein said service server is configured to store said information element and said additional information element or said various information elements. additional 60. The radio communication system according to claim 59, wherein said service server is further configured to download said information element and said additional information elements or said various additional information elements from a service provider. 61. The radio communication system according to claim 60, wherein said service server is further configured to download said information element from said additional information element or said various additional information elements from a network connection.
2. 2. The radio communication system according to claim 61, wherein said network connection includes also Internet connection. 63. The radiocommunication system according to claim 59, wherein said broadcasting resource further includes one or more logical channels and wherein said service server is further configured to provide said information element and said additional information element or said various elements. of additional information in said logical sub-channel or said various logical sub-channels. 64. The radio communication system according to claim 59, wherein said service server is further configured to process said requests for said additional information element or said various additional information elements. 65. The radio communication system according to claim 64, wherein said service server is further configured to associate each of said additional information element or said various additional information elements with a local identifier. 66. The radio communication system according to claim 65, wherein said service server is further configured to process said requests for said additional information element or said various additional information elements in accordance with said local identifier. The radio communication system according to claim 59, wherein said service server is connected to a service provider, and where one or more additional information elements are stored in said service provider. The radio communication system in accordance with the claim 67, wherein said service server is further configured to store said link or said various links and where each of said link or said several links is associated with said additional information element or said various additional information elements stored (s). ) in said service provider using a link identifier. The radio communication system according to claim 68, wherein said service server is further configured to associate each of said additional information element or said various additional information elements with a local identifier. The radio communication system according to claim 69, wherein said service server is further configured to store a map of said link identifiers associating each of said link or said several links with one or more additional information elements employing said local identifier. 71. The radio communication system according to claim 70, wherein said server is further configured to translate said requests from said mobile station using said map from said selected link or said several selected links to one or more local identifiers. 72. The radio communication system according to claim 71, wherein said service server is further configured to transfer said requests from said mobile station to said service provider using said translated requests. 73. The radio communication system according to claim 72, wherein said service server is further configured to translate said local identifier or said various local identifiers into one or more specific link identifiers. 74. The radio communication system according to claim 72, wherein said broadcasting resource further includes one or more logical channels and wherein said service server is further configured to provide said additional information element or said various additional information elements transferred to it. from said service provider to said service server in response to said request in said one or more logical subchannels. 75. The radiocommunication system in accordance with the ^ claim 43, wherein said broadcasting resource further includes a service provider, and where said The service provider is configured to store said information element and said additional information element or said various additional information elements. ^^ 76. The radiocommunication system in accordance with the 10 claim 75, wherein said diffusion resource further includes one or more logical channels and wherein said service provider is further configured to provide said information element and said additional information element or said various 15 additional information elements in said logical sub-channel or said various logical sub-channels. ^ 77. The radiocommunication system according to claim 76, wherein said broadcasting resource further includes a Mobile Switching Center (MSC), Wherein said information element further includes a header, and wherein said service provider is further configured to provide said MSC with said header for broadcasting said at least one mobile station. 25 78. The radio communication system in accordance with ia claim 77, wherein said MSC is further configured to: receive said requests for said additional information element or said various additional information elements from said at least one mobile station; and transfer those requests to that service provider. The radio communication system according to claim 77, wherein said service provider is further configured to group said information element into one or more categories. The radio communication system according to claim 78, wherein said service provider is further configured to respond to said requests by providing said additional information element or said various additional information elements to said MSC. The radio communication system according to claim 80, wherein said mobile station is further configured to provide a destination address representing a delivery destination for said additional information element or said various additional information elements, and wherein said MSC is configured also to accept that address from destination and to provide said destination address with said additional information element or said various additional information elements provided by said service provider. The method according to claim 1, wherein said transmission step is repeated periodically.