MXPA97008411A

MXPA97008411A - Downloading location specific information to a selective call receiver

Info

Publication number: MXPA97008411A
Application number: MXPA/A/1997/008411A
Authority: MX
Inventors: Lee Davis Walter; Anthony Chanroo Keith
Original assignee: Motorola Inc
Priority date: 1995-05-01
Filing date: 1997-08-31
Publication date: 1998-02-01

Abstract

A selective call system (100) has a plurality of base sites (120-124) for communicating with a plurality of selective call receivers (108) with acknowledge-back capability. A base site transmitter (210) transmits signals encoded with a stored location identifier (132), a base site receiver (241) receives acknowledge-back signals in response to the transmitted signals and a controller (206) determines when a selective call receiver (108) is authorized to receive location specific information (134). The base site transmitted (210) downloads the location specific information (134) to the selective call receiver (108) in response to verifying that the selective call receiver (108) is authorized. The selective call receiver (108) receives the signals having the location identifier (132) and the downloaded location specific information (134). A decoder/controller (306) compares the location identifier (132) received with the stored location identifier (108) of selective call receiver (108) to determine when the selective call receiver (108) has roamed to the new serviceárea and stores the new location identifier (132). An acknowledge-back transmitter (334) transmits the new location identifier (132) to a home serviceárea for enabling paging information to be routed from the home serviceárea to the selective call receiver (108) at the new serviceárea.

Description

METHOD AND EQUIPMENT TO TRANSFER SPECIFIC INFORMATION ABOUT LOCATION TO SELECTIVE CALL RECEIVERS Field of the invention The present invention relates, in general, to communication systems and, in particular, to a method and equipment for transferring location specific information to a selective call receiver.

BACKGROUND OF THE INVENTION Selective call (or paging) systems typically provide one-way radio (RF) communications of selective call messages (pages) from a message originator to a selective call receiver. The message originator contacts the paging system via the public telephony network (PSTN) system or other input interface, and provides the message information to a paging controller. In general, the message information is encoded in a conventional signaling register, modulated in a carrier signal and transmitted as an RF signal in a paging channel to the selective receiver of calls. The latter receives, demodulates and decodes the signal to retrieve the message and then presents the message to the user of the selective receiver. t The paging service providers that provide their services to a large number of subscribers (paging or selective calling receiver users) must spend their time in the air efficiently to make the paging system commercially viable from the point of view cost effective. Because paging system subscribers are often on the move and can travel in a wide geographic area, paging systems must provide a unified service over a wide geographical area. However, a paging channel tends to limit the amount of messages that can be transmitted through said channel, because it has a limited bandwidth. Consequently, the providers that wish to provide their services to the increasing number of subscribers in the wide geographic area, achieve this by segmenting said coverage area in a plurality of smaller service areas, to transmit more pages in parallel and increase the overall performance of the system. Unfortunately, segmenting geographical regions restricts geographic areas and then aggravates the sending of pages to a subscriber of the tracking service. When a subscriber moves from; one service area to another, the provider must know it, in order to guarantee that the pages destined for a follow-up subscriber reach the selective receiver of calls. In general, this was achieved by requesting the subscriber to send the itinerary and schedule to the provider before going on a trip. Manually, the provider configured a database for the paging system of the subscriber to send the pages addressed to the subscriber of the tracking service to the area (or areas) of the corresponding destination service (s) to the itinerary and schedule. When the subscriber returned from the trip, he contacted the provider to reconfigure the aforementioned database so that the pages addressed to the subscriber could be sent to the local service area. This can be very complicated and subject to human error, since the subscriber must remember to contact the providers. This circumstance tends to reduce the efficiency and accuracy of the paging system operations, which means that operating costs and potentially frustrated customers are added up due to loss of pages sent to the wrong destination service areas. Also, regardless of the location > A subscriber's geographical location is highly advisable, while paging messages are sent, sending information related to the operation of the subscribers in the new geographical area. So, what is required is a selective calling system for a large area that can provide the subscribers with the tracking service, the paging information and other important information in a convenient and efficient way to make the change of geographic area of the as transparent as possible.

Brief description of the schemes FIG. 1 is an electrical block diagram of a selective call system made in accordance with a preferred embodiment of the present invention. FIG. 2 is an electrical block diagram of a base station made in accordance with the preferred arrangement of the present invention. FIG. 3 is an electrical block diagram of a selective call receiver that has recognition return capability. FIG. 4 is an electrical block diagram of a decoder / controller based on a microcomputer suitable for use in the selective call receiver of FIG. 3. Figs. 5 and 6 are illustrations of a selective system of calls of an extensive geographical area made in accordance with the preferred arrangement of the present invention. FIG. 7 is a diagram of the combination of a selective call system and a wireless telephone system made according to a second embodiment of the present invention. FIG. 8 is a block diagram of the combination of the selective call receiver and the wireless telephone transceiver made in accordance with the second arrangement of the present invention. FIGs. 9 to 12 are flow diagrams illustrating the sequences of operation for the selective call system FIGs. 1-3 and the combination of the paging system and the wireless telephone system of FIGs. 7 and 8.

Detailed description of the invention With respect to FIG. 1, a selective call system (100) made in accordance with a preferred arrangement of the present invention is indicated. This system (100) includes a paging (or terminal) controller (104) coupled to a telephone network (102) and numerous base sites (120-124), each with related geographic areas (or coverage areas) (105-). 106). The paging controller (104) accesses a subscriber database (130) that is coupled there to obtain subscriber information (138), including address, location identification (132) and specific location information (134) . The information about the subscriber (138) is combined with other paging information (called selective) to form a page. As an example, the subscriber's database (130) appears with much information from the subscriber (138) illustrating the location identifiers (132) and preferably indicates, for example, the cities that the subscriber most frequently visits, which are indicated as location identifiers (1-N) . The location-specific information (134) relates to each location identifier (132) for subscriber information (138). The location-specific information (134) includes specific information on general location and location of the subscriber. The specific information on location in general includes, for example, the numbers of the local telephone directory, such as hotels, restaurants, theaters, taxis and other general information relating to a particular city (geographical area or service area). The specific information on the location of the subscriber includes, for example, the telephone numbers of the subscriber's clients and other personal and confidential information that the subscriber may need while in a specific city.

(Geographic area). Each location identifier (ID UBIC 1-N) (132) identifies a city, service area or geographic area and the corresponding information (INFO 1-N) related to it. For example, the subscriber database (130) illustrates subscribers' numbers 1 through M, each subscriber being able to operate service areas 1 through N. In service areas 1 through N, the specific information about the subscriber is stored. location that relates to subscribers 1 through N. For example, when a subscriber travels to a service area that is outside their local area, their selective receiver (108) will receive selective calls from the paging controller (104) which is located in the new service area. The selective call signals are encoded, by techniques known to the experts of this discipline, with the location identifier (ID UBIC) (132) of the new service area by means of a controller (140) of the service area of the paging controller (104). The pages are then stored in the queue of the paging system (136) before transmission. The selective call signals are recovered sequentially from the queue of the paging system (136) by means of a »retrieval of the paging controller (104) and sent to transmitters (110-114) via a communication connection, for example, the telephone line, a radio frequency connection, microwave connection, satellite communication or a combination of all of them. It is recognized that the page transmitters (110-114) can not be located near the paging controller (104) and in accordance with the preferred arrangement of the present invention, the transmitter (s) (110-114) is they are found in different geographic areas (or coverage areas) (or distant). The service area controller (140) selects the transmitters of the pages (110-114) to couple the pages as indicated by the information of the current service area (the location identifier) (132) for the sending of the pages. The selective call receiver (108) decodes and compares the location identifier (132) with its local location identifier to determine the time it moves to a new service area. The local location identifier (132) is preferably contained in a ROM (read only memory) memory for permanently storing the local location identifier. The new location identifier (132) is stored in a RAM (random access memory) that can be erased when the selective call receiver (108) receives another location identifier (132), that is, when the selective call receiver tracked another service area. It is convenient for the selective call receiver (108) to be reconnaissance return (108) that stores the new location identifier (132) and transmit recognition return signals to the bases (120-124) of the new service area to start the registration. The terminal controller (104), upon receiving the acknowledgment return signal, verifies whether the selective call receiver (108) is authorized to receive location-specific information (134). Preferably, the specific information on general location is recorded in a base site or terminal controller of each service area to which the information belongs and the specific information on the location of the subscriber is recorded in the local service area of each subscriber. Alternatively, both the specific information on the general location and that of the subscriber may be recorded in a new service area or in the local service area without departing from the scope of the invention. »When the terminal / controller (104) determines that the selective call receiver (108) is authorized, the location specific information (134), or better yet the specific information on general location is transferred to the selective call receiver (108) which receives and stores the specific location information to operate more efficiently in the new service area. Similarly, the selective call receiver (108) transmits, via the new service area to the local service area, the recognition return signal coded with the identifier of the new location (132). When the paging controller (104) of the local service area receives and decodes the identifier of the new location (132) it is saved and used to send future pages to the selective call receiver (108) to the new service area . The paging controller (104), from the local service area, also checks the subscriber's database (130) to determine if there is specific information on location (134), preferably specific information on location of the subscriber, corresponding to the identifier of the new location received. If so, the location-specific information (134) is retrieved and forwarded to the new service area for transfer to the selective call receiver (108). A computer (103) and a modem (101) connected to the subscriber database (103) are shown to provide an entry to the location identifier (1-N) (132) for the subscribers (1-M) (138). ). The location identifier (1-N) (132) possesses the specific information on the corresponding location (1-N) (134) stored there. In particular, a subscriber can design his database (130) to include only the cities and specific information that the subscriber needs. Likewise, the subscriber can be provided, for example, with an access code to modify or change the information stored in the subscriber's database (130). In this way, a selective call receiver with recognition return capability can track over a wide area while being able to receive pages and information relating to the service area to which the selective receiver has tracked without receiving No user income or without providing a travel itinerary. When the selective call receiver receives a new location identifier, said receiver sends the location identifier to its local service area so that all the paging information can be sent to the new service area indicating the location identifier. . The paging controller of the new service area also determines whether the selective calling receiver is authorized to receive the specific information on location in the service area. The location-specific information is transferred to the selective receiver when it is authorized. On the other hand, when the local service area receives the new location identifier, it checks whether there is specific information about location that is transferred to the selective call receiver. With reference to FIG. 2, a more detailed block diagram of the base sites (120-124) is presented according to the preferred arrangement of the present invention. The base stations (120-124) include a telephone interconnection (201) that allows a message to enter the selective calling system (100) through a public or private telephone network using, for example, a telephone (116) ( FIG 1), a computer (103), or an alphanumeric input device (not shown). A communication terminal (202), such as the encoder MODEN PLUS from Motorola, processes the information received through the telephone interconnection (201). In a memory (204) a generated address and a decoded message of the received information is recorded until the next transmission cycle. As indicated, the communication terminal (202) is connected to a controller (206), which controls the operation of a connection transmitter (208), a base transmitter (210), a base receiver (212) and a receiver (214). An example of a suitable controller for use in this invention is the Motorola MC6809. A timing generator (216) connected to the controller (206) is a highly accurate clock to maintain the time regulation for the communication and synchronization of the selective call system (100), including all the selective call base sites (120). -124) and the many selective call receivers (108), by techniques known to those experienced in this discipline. From the operational point of view, the transmitter of the base (210) transmits, to the numerous selective call receivers (108), at least one that has the characteristics of return of recognition, a signal that contains a message of type paging ( so-called selective), preferably at a first frequency in the transmission cycle. As is known, the paging message is coded, before being transmitted, with the appropriate address to direct the desired selective calling receiver of all selective call receivers (108). For example, when one of the many selective call receivers (108) has been paged, the receiver that received the message transmits a response, the recognition return signal. It's < It is recommended to transmit the recognition return signal (recognition) at a second frequency to maximize the performance of the paging channel. The receiver (214) of the selective call bases (120-124) receives the recognition return response (rec signal or ret rec signal) that is recorded in a memory (204). The receiver (214) demodulates the recognition return signal to produce a signal from the baseband. This signal is transformed (numerical value is given) from analog to digital through a converter (220) (A / D) known by specialists. A digital signal processor (DSP) (218) receives and saves the conversion performed by said A / D converter (220). The DSP (218), by * example, may include digital signal processors of the Motorola DSP56100 or TMS3000 series of Texas Instruments. According to the preferred arrangement for this invention, the DSP (218) records the numerical samples as numeric bits and continuously receives and records said samples until all the bits of the recognition return signal are received and saved. Samples are retrieved and each bit is decoded. Once the decoding of the recognition return signal has been completed, the DSP determines whether the selective receiver is authorized to receive transferred information. With respect to FIG. 3, an electrical block diagram of a selective call receiver (108) is presented, according to the preferred arrangement of this invention. Said receiver (108) has an antenna (302) for intercepting transmitted radio frequency (RF) signals that are connected to the input of a receiver (304). Conveniently, the RF signals are selective call (paging) message signals that provide, for example, a receiver address, a location identifier (132) and a related message, such as a voice message. However, it will be noted that it is also possible to use other known paging signaling formats, such as signaling by tone only, signaling by tone, numeric or alphanumeric signaling. The receiver (304) processes the RF signal and produces in the output a data series representative of a demodulated data information. The information on demodulated data is connected to the input of a decoder / controller (306) that processes the information in a manner known in this discipline. A reconnaissance return transmitter (334) is connected to the antenna (302) and the decoder / controller (306). A power switch is used, which is connected to the decoder / controller (306), to control the power supply to the receiver (304) - thus fulfilling a battery saving function - and to the transmitter (334) to transmit the recognition return signal in response to the receipt of a paging message. For the purposes of this illustration, it is to be assumed that the protocol is the FLEX ™ signaling format, although it is possible to use other signaling formats. When the decoder / controller (306) receives the address, this received address is compared with one or more addresses stored in a chip with code (memory) (322), and when * a match is detected, an alert signal is generated to put upon warning the user that a selective call message or a page has been received. The alert signal is directed to an auditory warning device (314) that generates a perceptible alert, or to a tactile alert device (316) that generates a silent vibrational alert. The switches (320) allow the user of the selective receiver of calls, among other things, to be able to select between the auditory signal (314) and the touch signal (316) in a manner known in the art. The message information that is subsequently received is stored in memory (404) (FIG.4) and the user can access it on the screen using one or more of the switches (320) of the additional functions such as returning to zero, reading and delete, etc. Specifically, thanks to the proper functions that the switches have (320), the decoder / controller (306) retrieves the message stored in the memory and displays it on the screen (308), so that the user can see it. When the selective call receiver (108) receives a message, the acknowledgment return response to the selective call base station can be automatically generated to inform it that the message was received with complete success. Preferably, the decoder (306) decodes when a new location identifier (132) is received. The controller decoder records the new location identifier in memory (404) and the recognition return transmitter transmits an acknowledgment signal to the paging controller of the new service area to initiate the registration. The encoded recognition return signal is transmitted to the local service area < with the new location identifier (132). Accordingly, the bases of the local service area can retransmit all pages to the selective call receiver (108) of the new service area. In turn, the paging controller of the local service area also controls and transmits all location specific information corresponding to the new location identifier. It is possible to instrument the decoder / decoder 306 of FIG. 3 using a microcomputer as indicated in FIG. 4. FIG. 4 is an electrical block diagram of a decoder / controller based on a microcomputer, which is suitable for use in the selective call receiver of FIG. 3. As indicated, the microcomputer (306) preferably contains microcomputers in series, such as those manufactured by Motorola, Inc., including a built-in screen driver (414). The microcomputer (306) includes an oscillator (418) that generates the timing synchronization signals that are used in the operation of the microcomputer (306). A crystal or a crystal oscillator (not shown) is connected to the inputs of the oscillator (418) to provide a reference signal for determining the synchronization of the microcomputer. A timer / counter (402) is connected to the oscillator (418), which provides programmable timing functions that are used in the control of the receiver or processor operation. A RAM (random access memory) (404) is used to store the derived variables during the processing as well as to provide a storage of the information of the messages and the identifier of the new location that are received during the operation on the receiver selective calling. A ROM (read only memory) (406) stores the subroutines including the local location identifier that control the operation of the receiver or processor that will be explained later. It will be noted that in many of the computers with microcomputers, the programmable ROM area (PROM) can be provided with a programmable read-only memory (PROM) or a programmable read-only memory that can be electrically erased (EEPROM), which record the local location identifier (132). The oscillator (418), timer / counter (402), RAM (404) and ROM (406) are connected via a bus (device for the transmission of) address / data / control (408) to a central processing unit (CPU ) (410) which performs the instructions and * 'controls the operations of the microcomputer (306) according to the location identifier (132). The demodulated data generated by the receiver is connected to the microcomputer (306) through an input / output (I / O) port (412). The CPU (410) processes the demodulated data and when the received address is the same as that recorded in the code connection memory that is connected to the output of the microcomputer, for example an I / O port (413), it is received and the message is saved, if any, and a new identifier of location (132) in RAM (404). The recorded message is retrieved and the predetermined destination address is selected by the switches that are connected to the I / O port (412). Then the microcomputer (306) retrieves the saved message and directs the information on the data bus (408) to the screen driver (414) that processes the information and formats it so that it can be presented on a screen (308) (FIG. 3) how to be an LCD (liquid crystal display). At the same time that an address is received from the selective receiver of calls, the alert signal that can be sent through the data bus (408) is generated to an alert generator (416) that generates the alert signal • that is connected to the aforementioned hearing alert device. Alternatively, when the vibration alert is selected as explained above, the microcomputer generates an alert signal which is connected via the data bus (408) to the I / O port (412) to allow the generation of a signal by vibration or Silent The I / O port (412) receives the income of the switches through the data bus (408). The CPU (410) processes said revenues. Specifically, the CPU (410) retrieves the address of the selective call base station from the RAM memory (404) and together with the time counter (402) and the oscillator (418), the CPU (410) generates the signal of return of the recognition that passes to the transmitter through the data bus (408). The CPU (410) controls the operation of the battery economizer by battery saving signals directed by the data bus (408) to the I / O port (412) which is connected to the power switch (310). Periodically power is supplied to the receiver to allow decoding of selective receiver receiver address signals and all message information addressed to the selective receiver of messages. Specifically, when the selective call receiver (108) begins to decode the paging signal, the power switch feeds the receiver. When the message is received and saved, the microcomputer (306) sends a signal to the power switch (310) to cancel the power to the receiver (304) and to give power to the transmitter in order to transmit the encoded recognition return signal with the location identifier (132). FIGs. 5 and 6 are illustrations of paging systems of broad geographic areas. Specifically, FIG. 5 illustrates a service area of a paging system (geographic location) (502) capable of transmitting pages to a satellite transceiver (504). This * transceiver is composed of a satellite receiver (506) to receive pages that the satellite transceiver (504) can process before the satellite transmitter (508) transmits them in another service area (510). In the same way, FIG. 6 illustrates the satellite transceiver (504) that has receiver (506) and transmitter (508) that connect the different geographical coverage areas independently of their relative positions. For example, the satellite transceiver (504) connects geographical coverage area (510) with geographical coverage area (602), both located in the same continent, and connects geographical coverage area (510) with geographical coverage area (604) , both located in different continents. Thus, the selective call receivers (108) can follow-up around the world while receiving pages and specific location information without the need for the subscriber to intervene in these selective call receivers of the tracking service (108). With respect to FIG. 7, it is a selective call signaling system (paging) that combines communication through a first communication path (722) to a first data relationship, for example to a wide area paging system (700) and a second communication path (740) to a second data relationship, for example to a second generation wireless telephone system (CT-2) (702). The selective call signaling system uses a public telephony network (PSTN) (704) for the communication that occurs there. A message originator employs a page entry device (710) to enter paging information via the PSTN (704) for transmission to a subscriber of a paging system (700). <• Normally, the page entry device (710) is a telephone for entering information by voice or number. Said device (710) may also include a device for processing data, for example a page entry terminal or a computer terminal, for the generation of paging information that includes graphics, facsimiles or alphanumeric information. The originator composes the message that must be presented as paging information in a computer terminal and, by means of a modem call or other device by access number to the paging system (700) system, the originator connects the entry mechanism of the paging system. page (710) to a telephone network interface * (712) of the paging system (700) via a PSTN path (706). The paging information is then transported from the page entry device (710) to the telephone network interface (712) and then to a paging controller (714) to perform a processing similar to the FIG call selective system. . 1. The paging controller (714) operates in a manner similar to the selective call system of FIG. 1 to access the subscriber database (130) to retrieve specific information about, 1 location corresponding to the location identifier. In general, a wide area paging system includes numerous paging transmitters (718) that can transmit selective call signals in many paging coverage areas to increase the likelihood that a wireless telephone / paging tracking receiver (720) receive a message In a first alternative approach, numerous paging coverage areas overlap at least partially and are covered by synchronized paging transmitters synchronized to transmit pages in the overlapping coverage areas. The t as many overlapping paging coverage areas that are covered by paging transmitters of simultaneous transmission are considered a single service area. In a second alternative approach, numerous paging coverage areas do not overlap and are covered by individual paging transmitters that are not simultaneous. Each non-overlapping paging coverage area is considered a differentiated service area. In a third approach, a combination of overlapping and non-overlapping page coverage zones is used to effectively cover a geographic area to increase the likelihood that the tracking transceivers (720) will receive messages. Here, each non-overlapping paging coverage area is considered a differentiated service area, and numerous overlapping paging coverage areas are considered a single service area. Where both types of topologies exist in a wide-area paging system, the geographic area or service area is covered more effectively. In an alternative configuration of this invention, a transceiver (720) receives the selective call signals (722) transmitted from the paging system (700). Said transceiver is preferably composed of a combination of a selective call receiver (pager) and a cordless phone. The pager portion of the selective call receiver / wireless telephone transceiver (720) combination receives selective call signals while the wireless telephone transceiver portion, for example a second generation wireless telephone transceiver (CT-2) , can connect to the PSTN (704) through the wireless telephone system (702) to receive, and transmit wireless telephone signals. In accordance with the present invention, the paging controller (714) processes a page request from a caller and generates a page from there. Subsequently, the paging controller (714) transmits the page via the paging transmitters (718) to a portable communicator (740) or to the wireless telephone pager / transceiver (720). The service area controller (724) of the information on the current service area for the wireless telephone pager / transceiver (720) determines the service areas (which include many paging coverage areas) by which the page. These service areas * correspond to those in which a wireless telephone tracking / transceiver pager (720) is effectively installed. In one aspect of this invention, the paging system (700) periodically transmits its unique service area identifier (location) for service areas or geographic locations. The location identifier identifies the wireless telephone reception / transceiver page (720) the service area (geographic location) in which they are currently receiving pages. Accordingly, when the wireless telephone pager / transceiver (720) receives the location identifier, it can determine from there that there has been tracking to another service area when the new location identifier is different from the location identifier of the location area. "local" service. The "local" area of the pager / cordless phone (720) is the service area assigned to the pager / cordless phone (720) when it is not tracking. The specialists in this field will also know that the paging systems of different service areas can operate at different frequencies that the selective call receivers or the pager / cordless telephone can receive by scanning at the different frequencies to select a desired frequency. When a signal indicating an identifier of different location is received, the pager portion determines whether the location differs from its "local" service area, when the new location identifier is stored and the pager portion transmits your address or identifier to the paging system. The paging system of the new service area determines whether the pager / wireless telephone is authorized to receive location-specific information. Preferably, the paging system of the new service area stores a list of various pager / wireless telephones or selective call receivers that are authorized to receive location-specific information. Therefore, when the paging system receives a response from a pager / wireless telephone, the system compares the identifier / address of the pager / wireless telephone answer with the list to determine if the latter is authorized. When the paging system (700) of the new service area determines that the pager / wireless telephone (720) is authorized to * receive location specific information, this information is transferred to the pager / wireless telephone (720) as explained previously. Instructions are also sent to the wireless telephone transceiver to inform the "local" service area about the new location of the wireless telephone pager / transceiver (720) received. This transceiver informs the local service area by means of a connection to the nearest wireless telephone call point station of the wireless telephone system (702) by signaling a call point transceiver (730) composed of a receiver (732). ) and a transmitter (734). Once it connects there, the pager / wireless telephone (720) transmits the location identifier by the call point controller (736) which is connected to the PSTN (704) through a telephone network interface (738) to the area paging system from "local" service (700) through a path (708) to the "local" service coverage area. When the call point controller (736) calls the "local" paging controller (714), it retrieves and transmits the location identifier to the * paging controller (714) of the "local" service coverage area, so that the pages and location-specific information described above can be automatically sent to the new service area currently served by the pager / cordless phone (720). With respect to FIG. 8, the combination of the wireless telephone pager and transceiver (720) prepared in accordance with the preferred arrangement of this invention is presented. The pager / wireless telephone transceiver (720) combination (or 720 hand-held communicator) is comprised of a paging receiver section (800), a wireless telephone transceiver section (805) and a screen and message controller section (810) . The section of the paging receiver (800) includes an antenna (812) for receiving the selective signals of calls (paging). A paging channel radio frequency (RF) receiver (814) connected to the antenna (812) demodulates the selective call signals, and a selective signaling decoder (816) decodes the demodulated signal to retrieve the page and the location identifier that were transmitted there. The decoded page and the * location identifier are provided to a message processor and display controller (820) to process and decode the location identifier therein encoded. The decoded page is stored in a message memory (822), the location identifier is stored in a memory of the service area (823) and, by means of an alert device (824), the user (subscriber) is alerted that One page has been received. The user can activate the controls of his user screen (826) to retrieve the page from the message memory (822) and to present it in a message screen (822). By means of the controls (826) it is possible to manipulate said message screen (828) or alter the reception parameters in a manner known to the specialists in this field. A telephone logic control device (830) controls the operation of the wireless telephone transceiver section (805). An antenna (832) is used to transmit signals for conventional transceiver operation. The antenna (832) is connected to a transmit / receive switch (834) that operates under the control of the telephone control logic device (830). Said switch (834), in one position, connects the antenna (832) to a telephone channel RF receiver (836) for processing the received RF signals and for sending the signals to the telephone logic control (830). ). In a second position, the transmit / receive switch (834) connects the antenna (832) to a telephone channel transmitter (840) which processes the signals received from the telephone logic control (830) for transmission as an RF signal ( location update) from the antenna (832). In an alternative configuration, it is possible to connect a speaker (838) to the receiver (836) and a microphone (842) to the transmitter (840) for conventional wireless telephony operation. In the alternative configuration, the receiver (836) provides sound portions of the signals to the speaker (838) and digital portions of the signals to the logic control of the telephone (830). The transmitter (840) processes the sound signals received from the microphone (842) and digital signals received from the telephone logic control (830) for transmission from the antenna (832). According to the preferred configuration of the present invention, when the message processor (820) determines that a new location identifier was received, the "logical control of the telephone (830) is connected to the message processor (820) to initiate the transmission of the message. the location update signals including the location identifier to the "local" service area. The message processor (820) stores the location identifier in a memory of the service area (823) and signals the telephone logic control (830) to call the local paging controller (714) (FIG. of the location update signals to a call point transceiver (730) (FIG.7). Once the telephone logic control (830) is connected to the paging controller (714), the location identifier of the location update signals is retrieved by the message processor (820) and transmitted under the control of the logic control of the telephone (830). This one (830) signals the transmit / receive switch (834) that allows the telephone channel transmitter (805) to send, through the antenna (832), the location update signals that have the location identifier to the coverage area from "local" service to a second data relationship. Specifically, the portion of the CT-2 telephone of the pager / cordless telephone (720) is connected to the call point transceiver (730) and, as explained in FIG. 7, the connection to the paging system (700) is made through the PSTN. Subsequent to the connection, the location identifier is transmitted to the local service coverage area where the location identifier is stored in the database of the "local" service area (130). Thereafter, the local service area retransmits all the pages of the new service area and transfers the location-specific information that must be transferred to the pager / telephony? wireless (720). Similarly, the new service area determines whether the pager / wireless telephone (720) is authorized, and if so, transfers location-specific information to the pager / wireless telephone (720). In this way, when the "local" service area receives a page that must be transmitted to the wireless pager / telephone (720) that is being tracked in a different service coverage area (geographic location) whose location identifier is known , the "local" service area resends the pages and transfers location-specific information to the pager / wireless phone that is in the * new service area. People who have experience in the field know how to categorize and store information related to a pager / cordless phone (720), and how to re-send the pages that must be transmitted in different service areas. Preferably, the paging controller of the local service area generates a request to send a message when a page is received addressed to a transceiver located in a new service area. Therefore, according to the preferred arrangement of this invention, the wireless pager / telephone (720), upon receiving a different location identifier, knows that it is in a different service area. It then transmits the new location identifier to the "local" service area. It stores the location identifier and uses it automatically to automatically forward all pages and location-specific information to the wireless pager / telephone (720) indicated by the location identifier. On the other hand, the paging controller of the new service area transfers location-specific information to the pager / wireless telephone (720) when the latter is authorized. All specialists in this discipline understand that it is more convenient to perform the transfer of location-specific information initially when the selective caller or the pager / wireless phone has followed up on a new service area.

With respect to FIG. 9, a flow diagram of the operation of selective call receiver (108) according to the preferred arrangement of the present invention is illustrated. Upon start (902), the selective call receiver begins to receive and decode a paging transmission, including the location identifier (904). This identifier indicates the service area of the paging system that transmits the paging signal, and a selective call receiver that receives a location identifier can determine whether it has changed service area (906) by comparing its local location identifier with the received location identifier. In response to step 906, when a selective receiver receives a new location identifier other than "local", the receiver knows that it is moving. The selective call receiver (108) indicates an area change flag to indicate a new service area (912). Then the new service area identifier (location identifier) is stored in the selective call receiver (914). Following this storage, the receiver (108) transmits a return signal of the encoded acknowledgment with its identifier and the new location identifier (132) to start the registration with the new paging system and receive the location-specific information that was transferred.

Alternatively, in response to step 906, when the location identifier is the same, the pager continues in the conventional manner by interrogating the paging signals to detect its address (908). When the selective receiver has detected its address, it generates an alert and saves the message so that its user (910) retrieves it. However, when the called receiver does not detect his address or after passing 910, goes on to decode the paging transmissions (904) In this way, the selective call receiver can automatically determine that you are tracking. Said receiver (108) reports its current location to the "local" service when it receives a location identifier different from the "local" or any other received previously. Consequently, the selective receiver of calls, when displaying a flag, indicates that it is tracking (outside its local service area) and simultaneously, activates the return transmitter by acknowledgment to initiate the called mode and leave a record in the "local" service area that the receiver (108) is in the service area identified by the location identifier transmitted to the "local" paging system. The new service area establishes whether the selective call receiver (108) is authorized to receive location-specific information, and if so, that information is transferred to the selective call receiver. $ FIG. 10 presents a flow chart illustrating the operations of the entry paging and message delivery system, according to the preferred embodiment of this invention. After the start (1002), the paging system receives the incoming messages (1004). Upon receiving an incoming call signal, the paging controller (104) generates a voice prompt (1008) that requests the caller (eg the originator of the message) to enter the message followed by an "end" signal. This signal, as is known, indicates the end of the message. The paging controller (104) proceeds to process and store the incoming message (1010) until the "end" signal (1012) is received. Then, the subscriber database (130) (FIG.1) (1014) is asked for the subscriber identification code (ID) and the location identifier to determine if the selective receiver (108) has followed up to another service area. The selective call receiver (108) informs the "local" service area that is in another service area indicated by the transmitted location identifier. So, when the paging system receives a page for a receiver-selective call (108) that, as determined, is outside the "local" service area, the paging controller (104) calls the service area that indicates the location identifier and resends the page (message) to another service area (1020) so that the message is transmitted to the selective call receiver (108). In step 1022, the paging controller (104) determines whether the selective call receiver is authorized to receive the specific information about the transferred location. The paging controller (104), for example, stores a list of selective selective call receivers (108), and when said controller (104) receives the return signal by acknowledgment whose identifier of a selective call receiver (108) transmits the same, the * controller (104) compares the identifier with that list to specify if the aforementioned recipient is authorized. The paging controller (104) knows that the selective call receiver (108) is outside its "local" service area because the receiver (108) has previously informed the "local" paging system of its current geographical location. The paging controller (104) also transfers the location-specific information corresponding to 'new location identifier in the subscriber's database (130). Preferably, if each location identifier is assigned a telephone number of the geographical location of the paging system, each of these systems, which has the information stored in memory, can establish the service area to send the paging messages again directed to that selective receiver of calls. Therefore, by assigning a unique location identifier to each geographic area (service area), the local paging system can determine the service area of the selective call receiver that has been registered with the new location identifier. When the paging controller (104) receives the location identifier it stores it. When it receives * pages for that selective receiver of calls, the paging controller retrieves the location identifier in order to establish the location of the selective receiver of calls (108), and redirects the page and all the location-specific information to the geographical area that He pointed to the location identifier. As is known, it is possible to carry out the retransmission of the page and the information through satellite or microwave connections, or through any l <; equivalent communication connection that was adapted to that transfer. However, when the location identifier is the same as the "local" service area (1014), the message is queued for local transmission (1016). Following steps 1020 and 1016, the process waits for other incoming calls (1018). Thus, once the "local" service area is informed that a selective receiver is being followed (by receiving another location identifier), the paging controller can automatically forward all paging messages and specific information about the paging information. location to the selective receiver (108) that has registered the location change identifier. The new service area also transfers location-specific information to the selective receiver when it determines that the recipient is authorized to receive it. In accordance with the present invention, the selective call receiver (108) can travel anywhere in the world and continue to receive its pages and location-specific information relative to a new service area automatically when the selective receiver of calls informs the system of "local" page that receives a change in the location identifier. } FIG. 11 presents a flow diagram illustrating the call processing operation of the cordless telephone according to the alternative embodiment of the present invention. After the start (1102), after receiving a new location identifier, the message processor (820) activates the telephone logic control (830) to begin the search for a call point within the range (1104). Upon detection of the call point signal, the cordless telephone determines, by conventional techniques, whether said point is within the range (1106). Otherwise, the cordless telephone continues searching for other call point signals (1104). However, when a call point is within range, the cordless telephone activates the channel "within the service area" (1108) and indicates that the outgoing call can be initialized. Thereafter, an available call channel search (1110) begins, and if there is none, a "busy calling point" signal appears on the wireless telephone screen (1114) and the search continues (1110) . However, when there is a call channel available (1112), the cordless phone starts and starts processing the telephone call, * (1116). This processing continues until one of the parties ends the call, which generates the cut signal (1118). Upon receiving this signal, the call is concluded (1120). FIG. 12 presents a flowchart illustrating the operation of automatic registration and transfer of the location-specific information operation (database) of the pager / cordless telephone in accordance with the alternative arrangement of the present invention. Upon start (1202), the message processor (820) controls the service area change flag of the pager / cordless telephone to determine the time when the latter (720) has moved to a new service area (1204). ). Once the wireless telephone (720) determines that the location identifier (1206) has been modified, the wireless telephone portion activates the telephone registration mode (1208). The phone generates a record of the automatic service area that is transmitted to the local service area. This cordless phone starts searching for a CT-2 call point signal, and when it does not detect it, the search proceeds (1210). When detecting a call point signal, the cordless telephone determines whether the call point is within the range (1212). Once it is specified that the call point is within the range, the terminal of the call system enters the identification of the unit and the local system code. This allows the new location identifier to be transferred to the local system and thus enable this system to forward all the pages and transfer specific information about the location for the wireless telephone pager / transceiver to the service area where it is located at that moment. The preferred arrangement of the present invention operates automatically and is transparent to the user. The paging system receives and stores the location identifier. When it is within the range of a wireless telephone call point station (702), the message processor (820) sends a signal to the telephone logic control (controller) (830) to call the local paging controller (714) (FIG 7) and thus transfer the new location identifier of the wireless telephone pager / transceiver (720) The portion of the wireless telephone transceiver (720) retrieves and transmits the location identifier to the local service area to allow automatic transfer of pages and location-specific information. Before the transfer of location-specific information to the selective call receiver (108) or the pager / wireless telephone (720) occurs, the paging systems compare the received signal to a list of authorized receivers in order to determine whether the selective caller receiver (108) or pager / wireless telephone (720) is authorized to receive location-specific information. At this time it should be noted that a communication system has been introduced to provide better paging by allowing local paging to register the service areas of the selective call receiver that moves and thus allow the paging system to resend the incoming pages and all location specific information without unnecessarily burdening your signal capacity. The paging system presents normal paging operations and sends messages to pagers located within its local service area, while using the return portion of the selective call receiver or wireless telephone connection recognition to inform the service area local where the receiver or pager / cordless telephone is moving. The local service area transfers location-specific information and resends all pages to the selective call receiver located in the new service area. Summarizing, in one of the forms of the invention, a selective calling system is presented which has numerous bases to favor communication with many selective call receivers capable of sending the return by acknowledgment. At least one of the many selective call receivers has a location identifier to facilitate operation in a wide geographical area. A method for communication is composed of the steps of: (a) transmitting selective signals of coded calls with a call identifier that is related to a service area of a base that transmits it; (b) comparing the received location identifier with location identifier of the selective receiver of call to determine the time when the latter has moved to a new service area; (c) registration to the new service area when the selective call receiver determines that the received location identifier contains a new location identifier; (d) sends the new location identifier to a service area of the selective call receiver to allow paging information to be sent to the receiver from the local service area. This sending step also includes the step of requesting from the base located in the local service area the transfer of specific information about the location corresponding to the new location identifier to the selective receiver of calls of the new service area. In addition, the method comprises the steps of: (di) storing location-specific information and a list of selective call receivers authorized to receive specific information about location in the new service area and storage of specific information about the location of the subscriber in the local service area, (d2) categorization of location-specific information according to the location identifier of the service area, (d3) access of location-specific information in response to the location identifier transmitted by the location selective receiver of calls to the base of the local service area; and (e) transfer of location-specific information in response to e. verification that the recipient is authorized to receive such information. The transfer stage includes the transfer of specific information about general location from the new service area and the transfer of specific information about the subscriber's location from the local service area.

Claims

CLAIMS 1. The method to communicate in a selective call system that has several communication bases and several selective receivers with return signal by acknowledgment, where at least one of the selective call receivers has the location identification stored to allow the operation within an extensive geographical area, comprises the following stages: (a) selective transmission of calls, which have a location identification stored in the service area of the base that transmits the call; (b) comparing the received location identification with the location identification stored in the selective receiver of calls, in order to determine the time at which the selective receiver of calls has moved to a new service area; (c) recording of the new service area when the selective receiver of calls determines that the received location identification is the new location identification; (d) transmitting the new location identification to the original service area of the selective receiver of calls, to allow the paging information to be sent from the original service area to the selective receiver of calls; and (e) transfer of location-specific information to the selective receiver of calls in a new service area to verify that the selective receiver of receipts authorizes to receive the location-specific information.
2. Each base of a selective call system, which has several communication bases and several selective receivers with return signal by acknowledgment, where at least one of the selective call receivers has a stored location identification to allow the operation in an extensive geographic area, it consists of the following: a transmitting base, to transmit the selective signals of coded calls according to the location identification associated to a service area of the transmitting base; a receiving base, for receiving the return signals by acknowledgment in response to the selective signals of the transmitted calls; a controller, attached to the transmitting base and the receiving base in order to determine the time at which the selective call receiver is authorized to receive the location-specific information as a result of a new location identification; the transmitting base transmits the location-specific information of the new service area to the selective receiver of calls, verifying that the selective receiver of calls is authorized to receive the location-specific information. The selective call receiver comprises: a receiver, which receives the selective signals of calls having the location identification and the location-specific information that is transmitted; a decoder / controller, attached to the receiver, for comparing received location identification with location identification stored in the selective receiver of calls, in order to determine the time at which the selective receiver of calls has moved to a new area of service; a memory, attached to the decoder / controller, which stores the location identification, to register it in the new service area when the received location identification is a new location identification; and a transmitter with a return signal by recognition, attached to the decoder / controller, which transmits the new location identification to an original service area, to allow the paging information to be sent from the original service area to "'the receiver selective call in the new service area
3. In the selective call system described in claim 2, the memory is classified by categories according to the location identification to store the location-specific information. Location is stored in the new service area and the location-specific information of the subscriber is stored in the original service area
4. In the selective call system described in claim number 3, location-specific general information includes information related to local telephone directories, restaurants and hotels in the new service area.
5. In the selective calling system described in claim 3, subscriber-specific information comprises information related to customer lists and personal and confidential subscriber information.
6. The selective receiver of calls with return signal by recognition and identification of stored location, which allows to perform an operation within an extensive geographical area, comprises the following: a receiver, to receive selective signals of calls, coded according to with the identification of location, which indicates the service area of the base that transmits said signals; a decoder / controller, attached to the receiver, for comparing the received location identification with the location identification stored in the selective receiver of calls, in order to determine the time at which the selective receiver of calls has moved to a new area of service; a memory, attached to the decoder / controller, which stores the received location identification, to enable operation in the new service area when the received location identification is a new location identification; a transmitter with return signal by acknowledgment, attached to the decoder / controller, which transmits the new location identification to the original service area, to allow the paging information to be sent from the original service area to the selective receiver of a new service area; and a receiver, as a consequence of the existence of the transmitter with a feedback signal that transmits the new location identification, to receive the specific information transmitted and to allow the operation of the selective receiver of calls in the new service area in effective way.
7. A communication system that has a selective call communication system and a combined wireless telephone communication system, which allows communication with a portable communicator, consists of a cordless telephone and a selective receiver of calls. The portable communicator has a stored location identification to allow operation in an extensive geographic area. The communication method comprises the following steps: (a) transmission of selective signals of calls that have a location identification associated to the service area of the base that transmits said signal; (b) comparing the received location identification with the location identification stored in the selective receiver of calls of the portable communicator in order to determine the moment in which the portable communicator has moved to a new service area; (c) recording of the new area of '• "wireless telephone service when the portable communicator determines that the received location identification is a new location identification; (d) transfer of the new wireless telephone location identification to the area of the portable communicator's original service, to allow selective call information to be sent from the original service area to a portable communicator; (e) transfer of location-specific information to the portable communicator in the new service area, verifying that the portable communicator is authorized to receive location-specific information
8. The communication system that has a selective call communication system and a combined wireless telephone communication system, which allows communication with a portable communicator, consists of a wireless phone and a selective receiver The portable communicator has a stored location identification to allow the operation to be performed within an extensive geographic area. The communication system comprises the following: a transmitting base, to transmit the selective signals of encoded calls according to the location identification associated with the service area of the transmitting base; a receiving base, for receiving signals from the cordless telephone in response to the selective signals of transmitted calls; a controller, attached to the transmitting base and the receiving base, to determine the time at which the portable communicator is authorized to receive the location-specific information, after having received the new location identification; the transmitting base, which sends the location-specific information of the new service area to the portable communicator, verifying that the portable communicator is authorized to receive the location-specific information. The portable communicator consists of the following: a selective call receiver, which receives the selective signals of calls with the location identification and location-specific information; a decoder / controller, linked to the selective receiver of calls, for comparing the received location identification with the location identification "" 'stored in the portable communicator in order to determine the time at which the portable communicator has moved to a new service area, a first memory, attached to the decoder / controller, to store the location identification and register the new service area when the received location identification is a new location identification, and a wireless telephone, attached to the decoder / controller, to transmit the new location identification to the original service area, and allow selective call information to be transmitted from the original service area to the portable communicator in the new service area
9. The portable communicator composed of a selective receiver of calls and a cordless telephone, having A stored location identification that allows operations to be performed within an extensive geographic area, consists of the following: a selective receiver of calls, to receive selective signals of calls, coded according to the location identification that indicates the service area of the base that transmits said signal "; a message processor, for '< comparing the received location identification with the location identification stored in the portable communicator in order to determine the time at which the portable communicator moves to a new service area; a memory, attached to the message processor, for storing the received location identification and enabling operations to be performed in the new service area when the received location identification is a new location identification; a wireless transmitter telephone, attached to the message processor, to transmit the new location identification to the original service area and allow the paging information to be sent from the original service area to the portable communicator in the new service area; and a receiver, attached to the memory, to receive the location-specific information previously transferred and allow the portable communicator to perform operations in the new service area.
10. The method to communicate with a selective system of calls, which has several bases to communicate with several selective receivers with a signal of return by recognition, where at least one receiver selective call has an identification of location, which allows operations to be carried out within a extensive geographical area, includes the following stages: (a) transmission of selective call signals with identification of location associated to the area of service of the base that transmits these signals; (b) comparison of location identification received with the location ID stored in the selective receiver of calls in order to determine the moment in which the selective receiver of calls is has moved to a new service area; (c) recording of the new service area when the selective receiver of calls determines that the received location identification is a new location identification; (d) transmission of the new location identification to the original service area of the selective receiver of calls, to allow the paging information to be sent from the original service area to the selective receiver of calls. The stage of sending more information consists in requesting the base of the original service area to transfer the location-specific information corresponding to the new location identification to the selective receiver of calls in the new service area; thus (di) store the location-specific information and a list of the selective call receivers authorized to receive the location-specific information in the new service area, and store the subscriber-specific location information in the original service area; (d2) categorize the location-specific information according to the identification of the location of the service area; (d3) accessing the location-specific information as a consequence of the transmission of the location identification of the selective receiver of calls to the base in the original service area; and (e) transfer of location-specific information, verifying that the selective receiver is authorized to receive location-specific information. The transfer stage includes the transfer of general location-specific information from the new service area, and subscriber-specific location information from the original service area. * Summary of the invention The selective calling system (100) has several bases (120-124) for communicating with several selective call receivers (108) with a return signal by acknowledgment. A transmitting base (210) transmits coded signals according to the stored location identification (132), a receiving base (241) receives the return signals by recognition in response to the signals that are transmitted, and a controller (206) determines the moment in which the selective call receiver (108) is authorized to receive the location-specific information (134). The transmitting base (210) transmits the location-specific information (134) to the selective call receiver (108) to verify that the selective call receiver (108) is authorized to operate. The selective call receiver (108) receives the location identification signals (132) and transmits location specific information (134). A controller / decoder (306) compares the received location identification (132) with the stored location identification (132) in the selective call receiver (108) in order to determine the time at which the selective call receiver ( 108) moves to a new service area, and stores the new location identification (132). A transmitter with acknowledgment return signal (334) transmits the new location identification (132) to the original service area, to allow the paging information to be sent from the original service area to the selective call receiver (108) in the new service area.