CA2045801C - Method and apparatus for remotely programming a mobile data telephone set - Google Patents
Method and apparatus for remotely programming a mobile data telephone setInfo
- Publication number
- CA2045801C CA2045801C CA002045801A CA2045801A CA2045801C CA 2045801 C CA2045801 C CA 2045801C CA 002045801 A CA002045801 A CA 002045801A CA 2045801 A CA2045801 A CA 2045801A CA 2045801 C CA2045801 C CA 2045801C
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- telephone set
- mobile data
- mobile
- data
- control center
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Abstract
Downloading of number assignment module designation parameters into a memory circuit of a mobile data telephone set utilizes the built-in voice bandmodem of the set so that service authorization codes and activation can be entered remotely into the subscriber's set thereby initiating cellular service or changing the type of service provided. As described, a cellular mobile subscriber first calls a remote cellular service provider center to establish a voice communication channel between the set and the center. Next, the modem of the set is selectively bridged onto the voice communication channel to achieve data transfer between a source of data located at the remote center and the subscriber's modem. The foregoing enables the remote programming of subscriber's authorization and information into the memory circuit of the mobile data telephone set.
Description
- METHOD AND APPARATUS FOR REMOTELY
PROGRAMMING A MOBILE DATA TELEPHONE SET
Technical Field The present invention generally relates to pro~l~nlllhlg of mobile 5 telephone sets and, more particularly, to a method and a~lus for remotely downloading Number Assignment Module (NAM) designation parameters into a mobile data telephone set.
Back~round of the I~ ..lion The use of cellular mobile telecomlllullications has undergone 10 substantial growth over the past few years. Due to a growing cll~tomt~r base, cellular mobile telephone service providers and cellular mobile telephone service resellers are faced with serving an increased number of new subscribers dem~n-ling divel~irled cellular services which include voice and/or data co""u~ ication. Also, a growing number of existing cellular mobile subscribers tend to switch back and forth 15 between various voice and data service providers depending on the marketing and sales incentives offered by any one of such providers to newly signed-up cellular mobile subscribers. The foregoing shifts and variations in customer - supplier and customer - reseller relationships require progl~llmillg, as well as repro~ nllllillg, of the cellular data telephone sets each time a customer subscriber desires a change.
Typically, cellular service providers require that any prospective customer take the cellular telephone set, after purchasing it, to an authorized service center for prog~m,llillg so that such telephone set becomes an authoriæd cellular service user set. In the case of cellular service resellers, prospective subscribers are often asked to send the telephone set, after purchasing it, to an authoriæd agent for 25 programming. In either case, the procedure is cumbersome and costly to the customer, as well as to the provider or reseller, because delays are encountered prior to the start of service. Therefore, there exists a need for a method and an appa~alus for pro~ ml~ g mobile data telephone sets in a manner that quickly, reliably andcost-effectively provides voice and data service to new or existing customers.
30 Summary of the Invention The foregoing need is met in an illustrative embodiment wherein a method for pro~,l~llllling a mobile data telephone set comprises the steps of establishing wireless bidirectional voice and data co"-",l-l-iration paths between the mobile data telephone set and a control center; activating the telephone set to enable 2o4 58o l hr~n~mi~sion and reception of data to and from the conhrol center over the voiceco--"~ ic~tion path; receiving, over the voice co-"""l~-içation path, a set of predetermined teleco"" - I-~ication service authorization coded signals allocated to the telephone set; and storing in the telephone set the received service authorization S coded signals.
In accordance with another embodiment, a remotely pro~ ulllllable mobile data telephone set comprises means including a radio hransceiver and a modem connected thereto for establishing wireless bidirectional voice and data cu""~ l-ication paths between the mobile data telephone set and a conhrol center, 10 actuating means for selectively bridging the modem of the telephone set onto a voice culllmullication path; means responsive to the actuating means for enabling the modem to receive, over the voice co"""ui-içahnn path, a set of predetermint-d service allthori7~tion signals allocated to the mobile data telephone set; and means for storing in the mobile data telephone set the received service authorization 15 signals.
In accordance with a further embodiment, a method for remotely authorizing teleco~-lnul-içation service to a mobile data telephone set from a control center comprises the steps of establishing wireless bidirectional voice and datacu,l"llunication paths between the conhrol center and the mobile data telephone set 20 for hr~ncmitting and receiving data signals therebetween over the voice conllllullication path; receiving, at the conhrol center, predetermined idenfifi~tion indicia associated with the telephone set; and h-~n~mitting from the conh ol center, over the voice co"-",llnication path in response to the received identificatinn indicia, teleco,--",ll"ication service authorization coded signals allocated to the telephone set.
In accordance with a particular illushrative embodiment of the invention, a mobile telephone set for hr~n~mitting and receiving voice and data signals over cullllllunications channels includes a radio hransceiver, a modem connected to the radio transceiver; actuating means for selectively bridging the modem onto a voice colllmullication channel; means responsive to the actuating means for enabling the 30 modem into a data commllni~ation mode, via the hransceiver, over the voice cn,--",llnication channel; means for receiving service allthori7~tion codes associated with the mobile telephone set; and means for storing the received service authorization codes.
20458~ 1 _.
Brief Description of the Drawin~
Further features and advantages of the present invention will become apparent from the following detailed description taken together with the drawings in which:
FIG. 1 is a schematic block diagram r~l~,sGnt:~tion of a mobile data telephone co~ ication configuration in accordance with an embodiment of the invention; and FM. 2 is a block diagram configuration of a mobile data telephone set in accordance with a preferred embodiment of the invention.
10 Detailed Description Shown in FIG. 1 is a schematic representation of a mobile data telephone c~-mm-lnication configuration which illustratively includes a mobile telephone switching office (MTSO) 100 which is adapted to link a mobile data telephone set 101 into a regional or nationwide telephone network (not shown). A15 cellular base station 102, coupled to the MTSO 100, via a bidirectional voice and data co,~ "lniçation link 103, is arranged to be in radio frequency c~ """"niçati~n with the mobile data telephone set 101 via a radio frequency antenn~ 104. Also shown in schematic form, is a cellular co~ unications service provider center 105 adapted to be coupled to the MTSO 100 via another bidirectional voice and data link 20 106. The service provider center 105 includes, inter alia, a telephone private branch exchange (PBX) 107, and a service attend~nt station 108 coupled to the PBX 107.
As shown, the mobile data telephone set 101 comprises a radio transceiver 109, abuilt-in modem 110, and a voice handset 111.
The principles and features of the present invention shall be hereafter 25 described in connection with FIG. 1. Upon the purchase or lease of the mobile data telephone set 101, a prospective subscriber would be assigned by the vendor or lessor a valid mobile telephone nulllbel which typically would include an area or regional code number followed by a station number. In order for the subscriber to be able to use the mobile data telephone set 101, a telephone service provider or 30 reseller, of the subscriber's choice, must auth~ ri7e such use by programming the set 101 so that it is identifiable within the cellular communications' network as anauthoriæd and le~itimate cellular mobile service subscriber/user. The pro~ ."" ,i ng of the set 101 is achieved by having the subscriber dial, out of the set 101, a predetermined service center number to first establish a voice and data 35 co~--",~ içation path with the cellular service provider center 105 via the radio 20~5801 antenn~ 104 and cellular base station 102, the bidirectional link 103, the MTSO 100 and the other bidirectional link 106. Once the voice and data c~ -ication path is established between the telephone set 101 and the service provider center 105, the subscriber/user can verbally, or by means of the telephone set dial, convey to an 5 opelalol located at the service ~ttendant station 108 any requested subscriber-specific information. In accordance with an illustrative embodiment, the telephone set 101 is equipped with a program activating key 112 adapted to bridge the modem 110 located within the telephone set 101, onto the then ;wl~ltly established voice co--..--~ tion path with the cellular service center 105. In turn, the o~el~lor at the 10 attendant station 108 would bridge, via a modem, a data tr~n~mitter located at the cellular service center onto the voice co------l-nication path. The foregoing in effect couples the modem at the center 105 with the modem 110 of the mobile data telephone set 101 so that the modems operate in the data mode. Next, the serviceOpeld~Ol can remotely enter information directly into a memory circuit of the mobile 15 data telephone set 101.
As mentioned above, the infullllation intended to be entered and stored in the mobile data telephone set 101 is specific to the mobile subscriber owner or lessee and to the desired service for such set. In cellular mobile co.~ ication services, such information is referred to as Number A~signmtont Module (NAM) 20 designation p~lle~el~. A sample of such NAM 11esign~tions that can be remotely downlo~de-l into the telephone set 101 are listed in the following table:
System Identific~tion 00022 Telephone Number 2013866366 Access Overload Class 06 Group Identifi-~tion 10 Initial Paging Channel 0334 Security Lock Code 6366 Local Use Flag A/B System Selection Min Mark Flag For the above sample of NAM designation p~lle~l~, the total number of characters needed to be ~ s--.i~l~d is ~ploxi~ tely 30 bytes in length, with each NAM designation entry having a value in the range of 0 through 9. With the addition of a special initial character, an ending character, and a 1 byte cyclic 35 redundancy check (CRC) coding segment, the total number of bytes is 33 or less in most cases. In accordance with a preferred embodiment, a 7-bit ASCII code is used 2~58~:~
s in the tr~n~mi~ion of the NAM designating parameters from the cellular service provider center 105 to the mobile data telephone set 101. The download sequence over a cellular voice channel begins with a start of download character "STX" (i.e., ASCII character 002 in octal code) which in(lic~ttqs to the software controller inside 5 the telephone set 101 to accept the subsequent 30 bytes as NAM ~esign~tion parameters. An end of download character "ETX" (i.e., ASCII character 003 in octal code) is next tr:~n~mitted to indicate that the tr~n~mi~sion of NAM ~ elel~ is now complete, to check the CRC checksum of all the digits received and to store all the NAM designation palalllelel~ in the permanent memory within the telephone set 10 101. A subsequent string of characters "EOT" (ASCII character 004 in octal code) is indicative that the downloading is completed, and that the mobile data telephone set may now start, or alternatively resume, cellular service operation and use.
Referring now to FIG. 2, there is shown in functional block diagram form, a mobile data telephone set 200 in accordance with a preferred embodiment of 15 the invention. The mobile data telephone set 200 comprises a radio transceiver portion 201 which includes a radio frequency receiver/tr~n~mitter 202 coupled to an antenna 203 and adapted to receive and transmit signals from and to a mobile base station, e.g. a mobile cell site, or another mobile telephone. Coupled to the receiver/tran~mitter 202, via a bidirectional message connection lead 204, is a 20 processor 205 capable of receiving and processing system message-type signals.
Also coupled to the receiver/tr~n~mittçr 202, via another bidirection~l lead 206, is a processor 207 adapted to process data signals as well as audio signals originating or received at the mobile data telephone 200. Audio and data signals present on lead 206 are those signals intended for and derived from the antenna 203.
Within the radio transceiver 201, a controller 208 is coupled to the message processor 205 and the audio processor 207, via a control bus 209, which is also coupled to the receiver/tran~mitter 202, and to a modem and modem controller circuit 210. A handset interface circuit 211 interconnects the audio processor 207 and a telephone h~n~lset 212. In accordance with one illustrative embodiment, interposed between the handset interface 211 and the radio transceiver 201 is a mode switch 213, which in turn is coupled to the modem circuit 210. During the remoteprogramming, or NAM parameters downloading, of the telephone set 200, the mode switch 213 diverts a stream of signals received at the ~ntenna 203 and present on output lead 214 of the audio processor 207 to the modem circuit 210. In such case, 35 rather than receiving such signals and delivering them out to a modem user intçrface 216 (e.g., an EIA RS-232 port), the modem controller diverts the stream of signals, ~ (~ 4 ~
via the control bus 209, to the transceiver controller 208 where they are retained and stored within a permanent memory circuit 215.
As mentioned in connection with the above illustrative embodiment, the stream of signals comprises a STX character, approximately 30 bytes of NAM
5 infollllation, an ETX character and a checksum character. Upon receipt of thisstream of signals, the mobile data telephone 200 is pro~ led to respond back to the cellular service provider center (105 in FIG. 1) by either tr~n~mitting an acknowl~dgem~nt signal "ACK" (i.e., ASCII character 006 in octal code) or a "NAK" signal (i.e., ASCII character 025 in octal code) in-lie~ting that an error- 10 occurred during tr~nsmi~ion and that the opela~ol at the cellular service provider should reiniti~te the NAM hlfollllation downloading. Upon successfully completing a downloading operation, the cellular service provider center transmits a series of EOT characters which, when received at the mobile data telephone 200, cause the modem 210 and mode switch 213 to revert to a voice mode thereby interconnecting 15 the handset 212 and its interface 211 to the audio processor 213. At this point, the opel~lor at the cellular service provider center can verbally inform the telephone subscriber that the mobile data telephone set 200 is now fully programmed and ready to be used.
Although the present invention has been described in connection with 20 particular embodiments thereof, additional embodiments, modific~ions and applications which will be ~palcnt to those skilled in the art are included within the spirit and scope of the invention. For example, although the remote pro~l"~illg of a mobile data telephone is described above with reference to cellular analog FM
channels, remote downloading of NAM designation parameters in Time Division 25 Multiple Access (TDMA) systems and Code Division Multiple Access (CDMA) systems may be readily achieved based on the above description. One way of accompli~hing such downloading is to send the NAM information as user data, which in essence is similar to sending data to a host colll~u~l on the public switched telephone network over a digital cellular system. Another way of achieving such 30 NAM downloading is to first adopt a unique signaling m~ss~ge - similar to hand-off requests, RF power adjllstm~onts, blank/burst, etc. - which the mobile data telephone set responds to, and to have such mt-ss~ge defined and sent out by a cell site at the request of the MTSO. Once a data path is established, the lc~ i ng operations and steps are identical to those described above in connection with an analog cellular 35 system.
PROGRAMMING A MOBILE DATA TELEPHONE SET
Technical Field The present invention generally relates to pro~l~nlllhlg of mobile 5 telephone sets and, more particularly, to a method and a~lus for remotely downloading Number Assignment Module (NAM) designation parameters into a mobile data telephone set.
Back~round of the I~ ..lion The use of cellular mobile telecomlllullications has undergone 10 substantial growth over the past few years. Due to a growing cll~tomt~r base, cellular mobile telephone service providers and cellular mobile telephone service resellers are faced with serving an increased number of new subscribers dem~n-ling divel~irled cellular services which include voice and/or data co""u~ ication. Also, a growing number of existing cellular mobile subscribers tend to switch back and forth 15 between various voice and data service providers depending on the marketing and sales incentives offered by any one of such providers to newly signed-up cellular mobile subscribers. The foregoing shifts and variations in customer - supplier and customer - reseller relationships require progl~llmillg, as well as repro~ nllllillg, of the cellular data telephone sets each time a customer subscriber desires a change.
Typically, cellular service providers require that any prospective customer take the cellular telephone set, after purchasing it, to an authorized service center for prog~m,llillg so that such telephone set becomes an authoriæd cellular service user set. In the case of cellular service resellers, prospective subscribers are often asked to send the telephone set, after purchasing it, to an authoriæd agent for 25 programming. In either case, the procedure is cumbersome and costly to the customer, as well as to the provider or reseller, because delays are encountered prior to the start of service. Therefore, there exists a need for a method and an appa~alus for pro~ ml~ g mobile data telephone sets in a manner that quickly, reliably andcost-effectively provides voice and data service to new or existing customers.
30 Summary of the Invention The foregoing need is met in an illustrative embodiment wherein a method for pro~,l~llllling a mobile data telephone set comprises the steps of establishing wireless bidirectional voice and data co"-",l-l-iration paths between the mobile data telephone set and a control center; activating the telephone set to enable 2o4 58o l hr~n~mi~sion and reception of data to and from the conhrol center over the voiceco--"~ ic~tion path; receiving, over the voice co-"""l~-içation path, a set of predetermined teleco"" - I-~ication service authorization coded signals allocated to the telephone set; and storing in the telephone set the received service authorization S coded signals.
In accordance with another embodiment, a remotely pro~ ulllllable mobile data telephone set comprises means including a radio hransceiver and a modem connected thereto for establishing wireless bidirectional voice and data cu""~ l-ication paths between the mobile data telephone set and a conhrol center, 10 actuating means for selectively bridging the modem of the telephone set onto a voice culllmullication path; means responsive to the actuating means for enabling the modem to receive, over the voice co"""ui-içahnn path, a set of predetermint-d service allthori7~tion signals allocated to the mobile data telephone set; and means for storing in the mobile data telephone set the received service authorization 15 signals.
In accordance with a further embodiment, a method for remotely authorizing teleco~-lnul-içation service to a mobile data telephone set from a control center comprises the steps of establishing wireless bidirectional voice and datacu,l"llunication paths between the conhrol center and the mobile data telephone set 20 for hr~ncmitting and receiving data signals therebetween over the voice conllllullication path; receiving, at the conhrol center, predetermined idenfifi~tion indicia associated with the telephone set; and h-~n~mitting from the conh ol center, over the voice co"-",llnication path in response to the received identificatinn indicia, teleco,--",ll"ication service authorization coded signals allocated to the telephone set.
In accordance with a particular illushrative embodiment of the invention, a mobile telephone set for hr~n~mitting and receiving voice and data signals over cullllllunications channels includes a radio hransceiver, a modem connected to the radio transceiver; actuating means for selectively bridging the modem onto a voice colllmullication channel; means responsive to the actuating means for enabling the 30 modem into a data commllni~ation mode, via the hransceiver, over the voice cn,--",llnication channel; means for receiving service allthori7~tion codes associated with the mobile telephone set; and means for storing the received service authorization codes.
20458~ 1 _.
Brief Description of the Drawin~
Further features and advantages of the present invention will become apparent from the following detailed description taken together with the drawings in which:
FIG. 1 is a schematic block diagram r~l~,sGnt:~tion of a mobile data telephone co~ ication configuration in accordance with an embodiment of the invention; and FM. 2 is a block diagram configuration of a mobile data telephone set in accordance with a preferred embodiment of the invention.
10 Detailed Description Shown in FIG. 1 is a schematic representation of a mobile data telephone c~-mm-lnication configuration which illustratively includes a mobile telephone switching office (MTSO) 100 which is adapted to link a mobile data telephone set 101 into a regional or nationwide telephone network (not shown). A15 cellular base station 102, coupled to the MTSO 100, via a bidirectional voice and data co,~ "lniçation link 103, is arranged to be in radio frequency c~ """"niçati~n with the mobile data telephone set 101 via a radio frequency antenn~ 104. Also shown in schematic form, is a cellular co~ unications service provider center 105 adapted to be coupled to the MTSO 100 via another bidirectional voice and data link 20 106. The service provider center 105 includes, inter alia, a telephone private branch exchange (PBX) 107, and a service attend~nt station 108 coupled to the PBX 107.
As shown, the mobile data telephone set 101 comprises a radio transceiver 109, abuilt-in modem 110, and a voice handset 111.
The principles and features of the present invention shall be hereafter 25 described in connection with FIG. 1. Upon the purchase or lease of the mobile data telephone set 101, a prospective subscriber would be assigned by the vendor or lessor a valid mobile telephone nulllbel which typically would include an area or regional code number followed by a station number. In order for the subscriber to be able to use the mobile data telephone set 101, a telephone service provider or 30 reseller, of the subscriber's choice, must auth~ ri7e such use by programming the set 101 so that it is identifiable within the cellular communications' network as anauthoriæd and le~itimate cellular mobile service subscriber/user. The pro~ ."" ,i ng of the set 101 is achieved by having the subscriber dial, out of the set 101, a predetermined service center number to first establish a voice and data 35 co~--",~ içation path with the cellular service provider center 105 via the radio 20~5801 antenn~ 104 and cellular base station 102, the bidirectional link 103, the MTSO 100 and the other bidirectional link 106. Once the voice and data c~ -ication path is established between the telephone set 101 and the service provider center 105, the subscriber/user can verbally, or by means of the telephone set dial, convey to an 5 opelalol located at the service ~ttendant station 108 any requested subscriber-specific information. In accordance with an illustrative embodiment, the telephone set 101 is equipped with a program activating key 112 adapted to bridge the modem 110 located within the telephone set 101, onto the then ;wl~ltly established voice co--..--~ tion path with the cellular service center 105. In turn, the o~el~lor at the 10 attendant station 108 would bridge, via a modem, a data tr~n~mitter located at the cellular service center onto the voice co------l-nication path. The foregoing in effect couples the modem at the center 105 with the modem 110 of the mobile data telephone set 101 so that the modems operate in the data mode. Next, the serviceOpeld~Ol can remotely enter information directly into a memory circuit of the mobile 15 data telephone set 101.
As mentioned above, the infullllation intended to be entered and stored in the mobile data telephone set 101 is specific to the mobile subscriber owner or lessee and to the desired service for such set. In cellular mobile co.~ ication services, such information is referred to as Number A~signmtont Module (NAM) 20 designation p~lle~el~. A sample of such NAM 11esign~tions that can be remotely downlo~de-l into the telephone set 101 are listed in the following table:
System Identific~tion 00022 Telephone Number 2013866366 Access Overload Class 06 Group Identifi-~tion 10 Initial Paging Channel 0334 Security Lock Code 6366 Local Use Flag A/B System Selection Min Mark Flag For the above sample of NAM designation p~lle~l~, the total number of characters needed to be ~ s--.i~l~d is ~ploxi~ tely 30 bytes in length, with each NAM designation entry having a value in the range of 0 through 9. With the addition of a special initial character, an ending character, and a 1 byte cyclic 35 redundancy check (CRC) coding segment, the total number of bytes is 33 or less in most cases. In accordance with a preferred embodiment, a 7-bit ASCII code is used 2~58~:~
s in the tr~n~mi~ion of the NAM designating parameters from the cellular service provider center 105 to the mobile data telephone set 101. The download sequence over a cellular voice channel begins with a start of download character "STX" (i.e., ASCII character 002 in octal code) which in(lic~ttqs to the software controller inside 5 the telephone set 101 to accept the subsequent 30 bytes as NAM ~esign~tion parameters. An end of download character "ETX" (i.e., ASCII character 003 in octal code) is next tr:~n~mitted to indicate that the tr~n~mi~sion of NAM ~ elel~ is now complete, to check the CRC checksum of all the digits received and to store all the NAM designation palalllelel~ in the permanent memory within the telephone set 10 101. A subsequent string of characters "EOT" (ASCII character 004 in octal code) is indicative that the downloading is completed, and that the mobile data telephone set may now start, or alternatively resume, cellular service operation and use.
Referring now to FIG. 2, there is shown in functional block diagram form, a mobile data telephone set 200 in accordance with a preferred embodiment of 15 the invention. The mobile data telephone set 200 comprises a radio transceiver portion 201 which includes a radio frequency receiver/tr~n~mitter 202 coupled to an antenna 203 and adapted to receive and transmit signals from and to a mobile base station, e.g. a mobile cell site, or another mobile telephone. Coupled to the receiver/tran~mitter 202, via a bidirectional message connection lead 204, is a 20 processor 205 capable of receiving and processing system message-type signals.
Also coupled to the receiver/tr~n~mittçr 202, via another bidirection~l lead 206, is a processor 207 adapted to process data signals as well as audio signals originating or received at the mobile data telephone 200. Audio and data signals present on lead 206 are those signals intended for and derived from the antenna 203.
Within the radio transceiver 201, a controller 208 is coupled to the message processor 205 and the audio processor 207, via a control bus 209, which is also coupled to the receiver/tran~mitter 202, and to a modem and modem controller circuit 210. A handset interface circuit 211 interconnects the audio processor 207 and a telephone h~n~lset 212. In accordance with one illustrative embodiment, interposed between the handset interface 211 and the radio transceiver 201 is a mode switch 213, which in turn is coupled to the modem circuit 210. During the remoteprogramming, or NAM parameters downloading, of the telephone set 200, the mode switch 213 diverts a stream of signals received at the ~ntenna 203 and present on output lead 214 of the audio processor 207 to the modem circuit 210. In such case, 35 rather than receiving such signals and delivering them out to a modem user intçrface 216 (e.g., an EIA RS-232 port), the modem controller diverts the stream of signals, ~ (~ 4 ~
via the control bus 209, to the transceiver controller 208 where they are retained and stored within a permanent memory circuit 215.
As mentioned in connection with the above illustrative embodiment, the stream of signals comprises a STX character, approximately 30 bytes of NAM
5 infollllation, an ETX character and a checksum character. Upon receipt of thisstream of signals, the mobile data telephone 200 is pro~ led to respond back to the cellular service provider center (105 in FIG. 1) by either tr~n~mitting an acknowl~dgem~nt signal "ACK" (i.e., ASCII character 006 in octal code) or a "NAK" signal (i.e., ASCII character 025 in octal code) in-lie~ting that an error- 10 occurred during tr~nsmi~ion and that the opela~ol at the cellular service provider should reiniti~te the NAM hlfollllation downloading. Upon successfully completing a downloading operation, the cellular service provider center transmits a series of EOT characters which, when received at the mobile data telephone 200, cause the modem 210 and mode switch 213 to revert to a voice mode thereby interconnecting 15 the handset 212 and its interface 211 to the audio processor 213. At this point, the opel~lor at the cellular service provider center can verbally inform the telephone subscriber that the mobile data telephone set 200 is now fully programmed and ready to be used.
Although the present invention has been described in connection with 20 particular embodiments thereof, additional embodiments, modific~ions and applications which will be ~palcnt to those skilled in the art are included within the spirit and scope of the invention. For example, although the remote pro~l"~illg of a mobile data telephone is described above with reference to cellular analog FM
channels, remote downloading of NAM designation parameters in Time Division 25 Multiple Access (TDMA) systems and Code Division Multiple Access (CDMA) systems may be readily achieved based on the above description. One way of accompli~hing such downloading is to send the NAM information as user data, which in essence is similar to sending data to a host colll~u~l on the public switched telephone network over a digital cellular system. Another way of achieving such 30 NAM downloading is to first adopt a unique signaling m~ss~ge - similar to hand-off requests, RF power adjllstm~onts, blank/burst, etc. - which the mobile data telephone set responds to, and to have such mt-ss~ge defined and sent out by a cell site at the request of the MTSO. Once a data path is established, the lc~ i ng operations and steps are identical to those described above in connection with an analog cellular 35 system.
Claims (9)
1. A method for programming a mobile data telephone set comprising the steps of:
establishing wireless bidirectional voice and data communication paths between the mobile data telephone set and a control center;
activating the telephone set to enable transmission and reception of data to and from the control center over the voice communication path;
receiving, over the voice communication path, a set of predetermined telecommunication service authorization coded signals allocated to the telephone set;
and storing in the telephone set the received service authorization coded signals.
establishing wireless bidirectional voice and data communication paths between the mobile data telephone set and a control center;
activating the telephone set to enable transmission and reception of data to and from the control center over the voice communication path;
receiving, over the voice communication path, a set of predetermined telecommunication service authorization coded signals allocated to the telephone set;
and storing in the telephone set the received service authorization coded signals.
2. A method according to claim 1, further comprising, prior to the receiving step, the step of transmitting from the mobile data telephone set over the voice communication path, predetermined identification indicia associated with the telephone set.
3. A method according to claim 1, wherein the storing step includes permanently storing the telecommunication service authorization coded signals in a read-only memory.
4. A method for remotely authorizing telecommunication service to a mobile data telephone set from a control center comprising the steps of:
establishing wireless bidirectional voice and data communication paths between the control center and the mobile data telephone set for transmitting and receiving data signals therebetween over the voice communication path;
receiving, at the control center, predetermined identification indicia associated with the telephone set; and transmitting from the control center, over the voice communication path in response to the received identification indicia, telecommunication service authorization coded signals allocated to the telephone set.
establishing wireless bidirectional voice and data communication paths between the control center and the mobile data telephone set for transmitting and receiving data signals therebetween over the voice communication path;
receiving, at the control center, predetermined identification indicia associated with the telephone set; and transmitting from the control center, over the voice communication path in response to the received identification indicia, telecommunication service authorization coded signals allocated to the telephone set.
5. A method according to claim 4, further comprising the steps of:
receiving, at the mobile data telephone set, the telecommunication service authorization coded signals; and permanently storing in the mobile data telephone set the telecommunication service authorization signals.
receiving, at the mobile data telephone set, the telecommunication service authorization coded signals; and permanently storing in the mobile data telephone set the telecommunication service authorization signals.
6. A remotely programmable mobile data telephone set comprising:
means including a radio transceiver and a modem connected thereto for establishing wireless bidirectional voice and data communication paths between the mobile data telephone set and a control center, actuating means for selectively bridging the modem of the telephone set onto a voice communication path;
means responsive to the actuating means for enabling the modem to receive, over the voice communication path, a set of predetermined service authorization signals allocated to the mobile data telephone set; and means for storing in the mobile data telephone set the received service authorization signals.
means including a radio transceiver and a modem connected thereto for establishing wireless bidirectional voice and data communication paths between the mobile data telephone set and a control center, actuating means for selectively bridging the modem of the telephone set onto a voice communication path;
means responsive to the actuating means for enabling the modem to receive, over the voice communication path, a set of predetermined service authorization signals allocated to the mobile data telephone set; and means for storing in the mobile data telephone set the received service authorization signals.
7. A remotely programmable mobile data telephone set according to claim 6, wherein the storing means include a read-only memory.
8. A mobile telephone set for transmitting and receiving voice and data signals over communications channels including:
a radio transceiver;
a modem connected to the radio transceiver, actuating means for selectively bridging the modem onto a voice communication channel;
means responsive to the actuating means for enabling the modem into a data communication mode, via the transceiver, over the voice communication channel;
means for receiving service authorization codes associated with the mobile telephone set; and means for storing the received service authorization codes.
a radio transceiver;
a modem connected to the radio transceiver, actuating means for selectively bridging the modem onto a voice communication channel;
means responsive to the actuating means for enabling the modem into a data communication mode, via the transceiver, over the voice communication channel;
means for receiving service authorization codes associated with the mobile telephone set; and means for storing the received service authorization codes.
9. A method for remotely authorizing telecommunication service to a mobile data telephone set from a control center comprising the steps of:
establishing wireless bidirectional voice and data communication paths between the control center and the mobile data telephone set;
activating the mobile data telephone set to enable transmission and reception of data between the control center and the mobile data telephone set over a voice communication path;
receiving at the control center predetermined identification indicia associated with the mobile data telephone set;
transmitting from the control center over the voice communication path, in response to the received identification indicia, service authorization codes allocated to the mobile telephone set; and storing the service authorization codes in the mobile telephone set.
establishing wireless bidirectional voice and data communication paths between the control center and the mobile data telephone set;
activating the mobile data telephone set to enable transmission and reception of data between the control center and the mobile data telephone set over a voice communication path;
receiving at the control center predetermined identification indicia associated with the mobile data telephone set;
transmitting from the control center over the voice communication path, in response to the received identification indicia, service authorization codes allocated to the mobile telephone set; and storing the service authorization codes in the mobile telephone set.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US59041190A | 1990-09-28 | 1990-09-28 | |
| US590,411 | 1990-09-28 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CA2045801A1 CA2045801A1 (en) | 1992-03-29 |
| CA2045801C true CA2045801C (en) | 1995-04-11 |
Family
ID=24362154
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA002045801A Expired - Fee Related CA2045801C (en) | 1990-09-28 | 1991-06-27 | Method and apparatus for remotely programming a mobile data telephone set |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP2593599B2 (en) |
| CA (1) | CA2045801C (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09509543A (en) * | 1994-02-24 | 1997-09-22 | ジーティーイー モービル コミュニケーションズ サービス コーポレイション | Cellular radiotelephone system with remote programmable mobile station |
| US6178506B1 (en) * | 1998-10-23 | 2001-01-23 | Qualcomm Inc. | Wireless subscription portability |
| JP2001109630A (en) * | 1999-10-05 | 2001-04-20 | Nec Shizuoka Ltd | Program download method, data transmitter and mobile terminal equipment |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06103854B2 (en) * | 1988-08-19 | 1994-12-14 | 日本電信電話株式会社 | Wireless telephone data remote writing method |
-
1991
- 1991-06-27 CA CA002045801A patent/CA2045801C/en not_active Expired - Fee Related
- 1991-09-25 JP JP3271886A patent/JP2593599B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH06343108A (en) | 1994-12-13 |
| JP2593599B2 (en) | 1997-03-26 |
| CA2045801A1 (en) | 1992-03-29 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EEER | Examination request | ||
| MKLA | Lapsed |