US20220303277A1 - System and Method of Modifying Policy Settings In An Electronic Device - Google Patents
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- US20220303277A1 US20220303277A1 US17/835,603 US202217835603A US2022303277A1 US 20220303277 A1 US20220303277 A1 US 20220303277A1 US 202217835603 A US202217835603 A US 202217835603A US 2022303277 A1 US2022303277 A1 US 2022303277A1
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Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L63/00—Network architectures or network communication protocols for network security
- H04L63/10—Network architectures or network communication protocols for network security for controlling access to devices or network resources
- H04L63/102—Entity profiles
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W12/00—Security arrangements; Authentication; Protecting privacy or anonymity
- H04W12/08—Access security
- H04W12/084—Access security using delegated authorisation, e.g. open authorisation [OAuth] protocol
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/02—Services making use of location information
- H04W4/029—Location-based management or tracking services
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W8/00—Network data management
- H04W8/18—Processing of user or subscriber data, e.g. subscribed services, user preferences or user profiles; Transfer of user or subscriber data
- H04W8/20—Transfer of user or subscriber data
- H04W8/205—Transfer to or from user equipment or user record carrier
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/02—Services making use of location information
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W48/00—Access restriction; Network selection; Access point selection
- H04W48/02—Access restriction performed under specific conditions
- H04W48/04—Access restriction performed under specific conditions based on user or terminal location or mobility data, e.g. moving direction, speed
Definitions
- the present invention relates generally to wireless telecommunication and more particularly to a system and method for modifying policy settings in an electronic device.
- MEDs Mobile electronic devices capable of computing, information storage and communications are increasingly becoming commonplace. MEDs typically integrate the functions of personal information management such as calendaring, data communications such as e-mail and world wide web browsing and telecommunications into a single device. Research In Motion Limited of Waterloo, Ontario, Canada, and PalmOne, Inc. of Milpitas, Calif. USA are two examples of manufacturers of such enhanced wireless electronic devices, and each offer a variety of products in this category.
- a typical MED contains a communications interface for establishing wireless communications with telephony and data networks serving different geographic regions.
- a typical MED contains a microcomputer which controls most of the functionality of the MED and aids in processing of information that the MED is presented with.
- a MED is called upon to establish communications with a network through many different network access stations as the user of the MED roams through different geographic regions served by different network access station wireless carrier.
- each MED has a designated “home” region served by a “home” wireless carrier. All other regions are roaming regions.
- the differences in service depend on the roaming region through which a connection is made. For example, availability of digital connections can vary from region to region.
- Variability of service between the home region and the roaming regions can present a significant problem to MED users or employers who pay for the services on behalf of such users.
- a user who wants to establish secure connections or avoid roaming charges for example, monitors his or her location and uses wireless communication only in the roaming regions where secure connections are offered or where no roaming charges are incurred. This requires a knowledge of the geographic region covered and services offered by the each network.
- employers paying for user's services unlike users, have no way of monitoring individual MED locations and hence rely on individual user's vigilance in order to ensure secure connections or avoid roaming charges.
- An aspect of the invention provides a subscriber device comprising an interface operable to conduct communications over a link with at least one base station in each of a plurality of geographic regions.
- the device also includes a microcomputer connected to the interface that is operable to maintain a policy associated with each region.
- the policy defines whether communications between the interface and the at least one base station are permitted for each region.
- the microcomputer permits the interface to communicate in accordance with the policy.
- the communications can include a plurality of different services.
- the services can include at least one of voice, emails, internet browsing and text messaging.
- the policy can permit one type of service to be performed in one specific region, while disallowing another type of service in the same specific region.
- the policy can disallow communications in a particular region if the communications within the region are conducted over an insecure link, or are otherwise insecure.
- the policy can disallow communications in a particular region if the communications within the region are conducted over an insecure link, or are otherwise insecure.
- the policy can disallow the communications in at least one of the regions if a financial cost for conducting the communications exceeds a predefined threshold.
- the links can include wireless links that can be based on one or more of CDMA, OFDM, AMPS, GSM, GPRS, BluetoothTM, infra-red and 802.11.
- the links can include wired links that can be based on Ethernet; USB; Firewire and RS-232.
- Another aspect of the invention provides a method of conducting communications from a subscriber device comprising the steps of: i) establishing a link with a base station from the subscriber device; ii) receiving an identifier from the base station at the subscriber device; iii) determining whether communications with the base station are permitted based on the identifier; and, iv) conducting the communications from the subscriber device only if the communications are permitted according to said determining step.
- Another aspect of the invention provides a server for communicating with a plurality of subscriber devices comprising a microcomputer operable to maintain a policy defining whether communications between at least one subscriber station and at least one base station are permitted.
- the server also an interface for delivering the policy to each of the at least one subscriber device.
- Another aspect of the invention provides a computer readable media operable to store a set of programming instructions.
- the programming instructions are for operating a server that is for communicating with a plurality of subscriber devices.
- the programming instructions are executable on a microcomputer associated with the server.
- the programming instructions are for rendering the microprocessor operable to maintain a policy defining whether communications between at least one subscriber station and at least one base station is permitted.
- Another aspect of the invention provides a computer readable media operable to store a policy for storage in a subscriber station.
- the policy defines whether communications between the subscriber station and a particular base station are permitted.
- FIG. 1 is a block diagram of a system for modifying communication policy in accordance with an embodiment of the invention
- FIG. 2 is a block diagram of the mobile electronic device of FIG. 1 ;
- FIG. 3 is a block diagram of certain internal components of a mobile electronic device of FIG. 1 ;
- FIG. 4 is a flowchart depicting a method of updating information in accordance with an embodiment of the invention.
- FIG. 5 is a flowchart depicting a method of establishing communication according to policy in accordance with an embodiment of the invention
- FIG. 6 is another arrangement of the system of FIG. 1 ;
- FIG. 7 is a block diagram of a system for modifying communication policy in accordance with another embodiment of the invention.
- FIG. 8 is a block diagram of a system for modifying communication policy in accordance with an embodiment of the invention.
- System 30 comprises a plurality of access stations 34 operable to wirelessly transceive across a variety of geographic ranges 38 .
- station 34 1 transceivers across a first geographic range 38 1
- station 34 2 transceivers across range 38 2
- station 34 3 transceivers across geographic range 38 3 .
- Access stations 34 communicate wirelessly over a plurality of links 42 . More specifically, station 34 1 covers first geographic range 38 1 by transmitting and receiving signals through link 42 1
- station 34 2 covers second geographic range 38 2 through link 42 2
- base station 34 3 covers third geographic range 38 3 through link 42 3 .
- Access stations 34 are operated by different wireless carriers 46 .
- stations 34 1 and 34 3 are operated by wireless carrier 46 1
- station 34 2 is operated by wireless carrier 46 2 .
- system 30 is based on a known voice-based wireless telecommunication such as Global System for Mobile Communications (“GSM”) or Advanced Mobile Phone System (“AMPS”).
- GSM Global System for Mobile Communications
- AMPS Advanced Mobile Phone System
- access stations 34 are also connected to a network 50 and network 54 through a wired connection.
- network 50 is the public switched telephone network (“PSTN”) and network 54 is the Internet, but in other embodiments other types of networks can be employed.
- PSTN public switched telephone network
- network 54 is the Internet, but in other embodiments other types of networks can be employed.
- System 30 also includes a mobile electronic device 58 .
- Device 58 is owned by office 62 and operated by persons associated with office 62 .
- device 58 is operable to connect to network 50 via a station 34 's link 42 each time device 58 is located within a range respective to that access station 34 . For example, whenever device 58 is located within geographic range 38 1 , device 58 can connect to network 50 by linking with access station 34 1 through link 42 1 , and whenever device 58 is located within geographic range 38 2 , device 58 can connect to network 50 by linking with station 34 2 through link 42 2 .
- links 42 each carry a wireless carrier identifier WID, that identifies the wireless carrier 46 operating the respective access station 34 that carries that particular link 42 .
- WID wireless carrier identifier
- links 42 each carry an access station identifier AID, that identifies the access station 34 that carries that particular link 42 . For example, if device 58 is located within geographic range 38 1 , device 58 would receive identifier AID 1 through link 42 1 .
- links 42 carry the phone number (or other unique identifier) associated with each device 58 that connects with an access station 34 . For example, if device 58 is located within geographic range 38 1 , station 34 1 would receive the phone number of device 58 through link 42 1 .
- links 42 can be based on any number of different wireless communication formats such as analog or digital depending on the type of wireless communication method used. For example, when station 34 employs GSM for wireless communication, link 42 established by that station is a digital link. When station 34 employs AMPS for wireless communication, link 42 established by that station is an analog link. Unlike analog links, which send signals using a continuous stream, digital links transmit the communications in packetized bit streams.
- Digital links 42 based on GSM offer enhanced security over analog links 42 based on AMPS. Interception and reconstruction of a digital link involves more highly specialized and expensive equipment than an analog link. Moreover, digital links 42 can be encrypted using methods such as stream ciphers, resulting in an encrypted communication between device 50 and access station 34 .
- link 42 1 is a digital link
- links 42 2 and 42 3 are analog links. As such, link 42 1 is inherently more secure then links 42 2 , and 42 3 .
- Device 58 is shown in greater detail.
- Device 58 is based on the computing environment and functionality of a personal digital assistant with wireless voice telephony capabilities. However, it is to be understood that device 58 can be based on the construction and functionality of any mobile electronic device that can be connected to a wireless network as well. Such devices include cellular telephones or laptops computers connected to wireless networks.
- electronic device 58 includes, a housing 66 , which frames an LCD display 70 , a speaker 74 , a microphone 78 , a trackwheel 82 , and a keyboard 86 .
- Trackwheel 82 can be inwardly depressed along the path of arrow “A” as a means to provide additional user-input.
- housing 66 can be made from any suitable material as will occur to those of skill in the art.
- Device 58 is based on a microcomputer that includes a processor 90 .
- Processor 90 is connected to a read-only-memory (“ROM”) 94 , which contains a plurality of applications executable by processor 90 that enables device 58 to perform certain functions.
- ROM read-only-memory
- Processor 90 is also connected to a random access memory unit (“RAM”) 98 and a persistent storage device 102 which is responsible for various non-volatile storage functions of device 58 .
- Processor 90 can send output signals to various output devices including display 70 and speaker 74 .
- Processor 90 can also receive input from various input devices including microphone 78 and keyboard 86 .
- Processor 90 is also connected to a modem and radio 106 . Modem and radio 106 are operable to connect device 58 to wireless access stations 34 in range of device 58 , in the usual manner, via an antenna 114 .
- office server 110 is a computing device, (such as a personal computer, a server, or the like) that is typically comprised of hardware suitable for server type functions, and includes a central processing unit, random access memory, hard-disk storage and a network interface for communicating over network 54 .
- Office server 110 stores the office connection policy (“CP”) database 118 , used for determining which access stations 34 a device 58 can link with in order to connect to a network.
- CP office connection policy
- Table I shows the initial settings of an example CP database 118 of office 62 for device 58 when it attempts to connect to network 50 , namely when a wireless voice call is being made.
- Table I shows one record, labelled Record 1 , which reflects information corresponding to device 58 . It should now be apparent that database 118 can include additional records for any additional devices 58 that are included in system 30 .
- Field 1 contains the unique identifier of device 58 , in this case its phone number “555-555-5555”.
- Field 2 contains a list of unique identifiers, AID, associated with access stations 34 .
- Field 3 contains the communications policy of office 62 for each access station 34 , in this case simply the decision to either “Allow Communication”, or “Disallow Communication”. In this case a communication is allowed through access stations AID 1 , AID 2 and AID 3 .
- other communications policies can be stored in CP databases 118 , and 122 .
- the communication policy stored may be to limit the length of the call when device 58 is in range of some access stations and allow limitless calls when in range of others. It should also be apparent that a combination of policies can also be used.
- device 58 also includes CP database 122 that includes data corresponding to the information stored in CP database 118 .
- the initial settings of CP database 122 are shown in Table II.
- Field 1 of database 122 corresponds to Field 2 of database 118
- Field 2 of database 122 corresponds to Field 3 of database 118 . Because initially, when the user first acquires the device from office 62 , device database 122 has the same content as the office database 118 .
- the policy as described by CP database 118 , is set by office 62 and updated by office 62 from time to time as needed.
- office 62 may desire that device 58 should place wireless calls through network 50 only when a digital link is available between an access station 34 and device 50 to reduce the chances that the wireless portion of the call is intercepted.
- this policy office 62 would not want device 58 to connect to network 50 through access stations 34 2 or 34 3 since stations 34 2 34 3 only provide an analog link 42 2 42 3 based on AMPS which is highly susceptible to interception.
- policy database 118 would be updated to reflect the new policy as shown in Table III.
- Office 110 is operable to update CP database 122 of device 58 by communicating with device 58 when device 58 connects to network 54 .
- a method for updating policy database 122 is indicated generally at 200 .
- method 200 is operated using system 30 , and that device 58 , as shown in FIG. 1 , is located in range 38 1 .
- device 58 as shown in FIG. 1
- range 38 1 the following discussion of method 200 will lead to further understanding of system 30 and its various components. (However, it is to be understood that system 30 and/or method 200 can be varied, and need not work exactly as discussed herein in conjunction with each other, and that such variations are within the scope of the present invention).
- a link is established.
- device 58 establishes link 42 1 with station 34 1 which is serving the range 38 1 .
- a connection is made with an office server.
- device 58 will use link 42 1 established at step 210 to connect to network 54 , and through network 54 , will eventually make a connection to office server 110 .
- Method 200 will then advance from step 220 to step 230 , at which point the new policy is transferred.
- database 122 is updated by transferring the new policy to device 58 .
- the updated CP database 122 is shown in Table IV.
- database 122 originally held the contents of Table II, but upon performance of method 200 using the specific example, database 122 now holds the contents of Table IV.
- a policy administered from office 62 has remotely changed base stations 34 that are accessible by device 58 from all access stations 34 down to access station 34 1 .
- a method for placing a wireless call through network 50 is indicated generally at 300 .
- method 300 is operated using system 30 and that device 58 , as shown in FIG. 1 , is located in range 38 1 .
- device 58 as shown in FIG. 1
- range 38 1 the following discussion of method 300 will lead to further understanding of system 30 and its various components. (However, it is to be understood that system 30 and/or method 300 can be varied, and need not work exactly as discussed herein in conjunction with each other, and that such variations are within the scope of the present invention.)
- a link is established.
- device 58 establishes link 42 1 with station 34 1 which is serving range 38 1 .
- an identifier is received.
- device 58 receives the identifier associated with an access station 34 .
- the identifier is AID 1 which is the identifier of access station 34 1 .
- Method 300 then advances from step 320 to step 330 , at which point a determination is made as to whether communication is permissible.
- the office policy is examined to determine whether communications through access station 34 1 are permitted.
- device 58 examines the office policy regarding wireless calls associated with identifier AID 1 in CP database 122 .
- the policy associated with AID 1 is “Allow Communication”. Accordingly, step 350 is performed next and communication is established. Accordingly, in this example, device 58 places a wireless call through network 50 .
- device 58 now moves to range 38 2 , served by access station 42 2 .
- method 300 is performed a second time.
- a link is established.
- device 58 establishes link 42 2 with station 34 2 which is serving range 38 2 .
- an identifier is received.
- device 58 receives the identifier associated with access station 34 .
- the identifier is AID 2 which is the identifier of access station 34 2 .
- Method 300 then advances from step 320 to step 330 , at which point a determination is made as to whether communication is permissible.
- the office policy is examined to determine whether communications through access station 34 2 are permitted.
- device 58 examines the office policy regarding wireless calls associated with identifier AID 1 in CP database 122 .
- the policy associated with AID 2 is “Disallow Communication”, as shown in Field 2 of Table IV. Accordingly, step 340 is performed next and communication is not permitted. Accordingly, in this example device 58 is prevented from placing a call.
- System 30 a is substantially the same as system 30 , and like elements in system 30 a bear the same reference as like elements in system 30 , except followed by the suffix “a”.
- System 30 a differs from system 30 in that in system 30 a different policy databases are used.
- office 62 a desires that device 58 a place wireless calls through network 50 a only using wireless carrier 46 a 1 since wireless carrier 46 a 1 offers cheaper connections than other carriers 46 a . According to this policy, office 62 a would not want device 58 a to connect to network 50 a through access station 34 a 2 since station 34 a 2 is operated by wireless carrier 46 a 2 .
- CP database 118 a reflecting this policy is shown in Table V.
- Field 3 associated with WID 2 is set to “Disallow Communication” to reflect the new policy that device 58 a should not connect to network 50 a through wireless carrier 46 a 2 .
- Such a policy that limits communications according to carrier could be desired for a number of reasons, such as reducing or controlling roaming charges, such that a particular device 58 a can only perform communications in a home region.
- Other criteria for setting policies that reside in device 58 a which define access stations 34 a that are accessible to device 58 a will now occur to those of skill in the art.
- device 58 a also includes a CP database 122 a that includes data that corresponds with the information stored in connection policy database 118 a .
- Contents of CP database 122 a is updated by performing method 200 , shown in FIG. 4 in substantially the same manner as database 122 in system 30 .
- the updated CP database 122 a is shown in Table IV.
- device 58 a is in range 38 a 2 , served by access station 42 a 3 .
- method 300 is performed.
- step 310 a link is established.
- device 58 a establishes link 42 a 3 with station 34 a 3 which is serving range 38 a 3 .
- an identifier is received.
- device 58 a receives the identifier associated with wireless carrier 46 a .
- the identifier is WIDa 1 which is the identifier associated with wireless carrier 46 a 1 operating access station 34 a 3 .
- Method 300 then advances from step 320 to step 330 , at which point a determination is made as to whether communication is permissible.
- the office policy is examined to determine whether communications through access stations operated by wireless carrier 46 a 1 are permitted.
- device 58 a examines the office policy regarding wireless calls associated with identifier WIDa 1 in CP database 122 a .
- the policy associated with WIDa 1 is “Allow Communication”, as shown in Field 2 of Table VI. Accordingly, step 350 is performed next and communication is established. Accordingly, in this example, device 58 a places a wireless call through network 50 a.
- System 30 b is substantially the same as system 30 , and like elements in system 30 b bear the same reference as like elements in system 30 , except followed by the suffix “b”.
- System 30 b differs from system 30 in that in system 30 b all links 42 are digital and that different policy databases are used.
- office 62 b employs CP database 118 b which is substantially the same as CP database 118 but has additional fields used for determining which access stations 34 b a device 58 b can link with in order to connect to different networks when using different applications (e.g. voice calls, web browsing, and e-mail). For example, an additional field is used for determining which access stations 34 b a device 58 b can link to in order to connect to e-mail through the Internet (network 54 b ). A further field is used for determining which access stations are linkable for surfing the web through the Internet (network 54 b ). Table VII shows an example of database 118 b of office 62 b for device 58 b .
- Table VII shows one record, labelled Record 1 , which reflects information corresponding to device 58 b . It should now be apparent that database 118 b can include additional records for any additional devices 58 b that are included in system 30 b , or additional fields for additional applications available on device 58 b.
- Fields 1 through 3 contain the same information as CP database 118 , shown in Table I.
- Field 4 contains the communications policy of office 62 b for each access station 34 b , in this case simply the decision to either “Allow Communication”, or “Disallow Communication”, to be used when device 58 b attempts to check e-mail through network 54 b .
- device 58 b can only check e-mail when connected to network 54 b through access stations 34 b 1 and 34 b 2 .
- Note also that device 58 b is permitted to place voice calls through any of the access stations 34 b.
- Field 5 contains the communications policy of office 62 b for each access station 34 b , in this case simply the decision to either “Allow Communication”, or “Disallow Communication”, to be used when device 58 b attempts to surf the web through network 54 b . In this case device 58 b can surf the web only through access stations 34 b 3 .
- other communications policies can be stored in CP databases 118 b , and 122 b .
- a communication policy may limit the data bandwidth when device 58 b is in range of some access stations 34 b and allow limitless bandwidth when in range of others. It should also be apparent that a combination of policies can also be used.
- Device 58 b also includes a CP database 122 b that includes data that corresponds with the information stored in connection policy database 118 b .
- CP database 122 b is updated by performing method 200 , shown in FIG. 3 in substantially the same manner as CP database 122 in system 30 .
- the updated CP database 122 is shown in Table VIII.
- Field 1 of database 122 b corresponds to Field 2 of database 118 b
- Field 2 of database 122 b corresponds to Field 3 of database 118 b
- Field 3 of database 122 b corresponds to Field 4 of database 118 b
- Field 4 of database 122 b corresponds to Field 5 of database 118 b.
- device 58 b is range 38 b 1 , served by access station 34 1 .
- method 300 is performed again to determine the permissibility of the e-mail access.
- Performance of method 300 using system 30 b is substantially the same as the performance of method 300 using system 30 except that Field 3 of database 122 b is used to determine the policy as opposed to using Field 2 to determine the policy for voice calls.
- the e-mail policy associated with access station 34 b 1 (as identified by AIDb 1 ) is to allow communications.
- device 58 b will be able to access e-mail.
- performance of method 300 will disallow access to the web since the policy associated with web surfing in region 38 1 (specified by the first row of Field 4 of Table VIII) is to disallow communication.
- GSM and AMPS are wireless communication methods contemplated, it should now be apparent that other wireless communication methods such as the Code Division Multiple Access (“CDMA”) for digital connections and the Total Access Communication System (“TACS”) for analog connections are all within the scope of the invention.
- Other methods include General Packet Radio Service (“GPRS”), and Orthogonal Frequency Division Multiplexing (“OFDM”), amongst others.
- GPRS General Packet Radio Service
- OFDM Orthogonal Frequency Division Multiplexing
- database 122 in system 30 can be updated through a direct connection between device 58 and office server 110 .
- this direct connection can take the form of a wired connection such as a Universal Serial Bus (“USB”) connection, a cross-linked peer to peer Ethernet connection, or a wireless connection such as a Bluetooth connection, an infrared (IR) connection, or a peer to peer IEEE 801.11 (e.g. 802.11b, 802.11g or other 802.11 variants) connection.
- database 122 could be updated through a Local Area Connection (“LAN”) to which both device 58 and office server 110 are connected.
- LAN Local Area Connection
- different criteria other than location of device 58 can be used for enabling, disabling or otherwise varying the communication capabilities of device 58 .
- time can be used as a determinant of communication capabilities.
- device 58 and certain applications performing on device 58 such as e-mail, could be allowed to communicate during certain periods of time such as daytime, and certain other applications, such as voice calls, could be able to communicate during other time periods such as night time.
- These policies can be designed, for example, to take advantage of periods during which certain services are offered at reduced costs by wireless carriers.
- office 62 can set up a policy database 118 which allows voice calls only during evenings and weekends when voice calls are cheaper.
- policies can be set up to choose between different wireless carriers when each region is served by multiple carriers. So, for example, if a region 38 is served by 2 access stations 34 , device 58 can determine which access station to use consulting the communications policy (namely during the performance of method 300 ). Accordingly, when there is a choice of carriers, policies could be designed to select more secure, less expensive or otherwise more desirable wireless carrier over those carriers that are less secure, more expensive or otherwise less desirable.
- device CP database 122 could be updated using different methodologies.
- the transfer of CP database 118 could be made selectively, transferring the database only when a difference is found between CP database 118 and 122 .
- each field of database 118 can be compared to the equivalent fields in database 122 to determine whether there are any differences.
- sizes of the database files or the date of modification of these files could be compared.
- the comparison can be done either by office server 110 , device 58 or some other computer trusted with maintaining synchronized CP databases between the office and the roaming devices. All these methods, and other methods for determining whether a CP database should be transferred to device 58 are within the scope of this invention.
- the policy can be stored in forms other than a database such as a lookup table.
- the policy can be stored at a computer other than the office server.
- the policy can be stored on routers and other dedicated computing devices.
- the policy could be stored on a computer or other electronic device which is operated by an entity other than the office that operates the mobile devices.
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Abstract
Description
- This application is a continuation of U.S. patent application Ser. No. 16/598,018 filed Oct. 10, 2019, which is a continuation of U.S. patent application Ser. No. 15/439,345 filed Feb. 22, 2017, which is a continuation of U.S. patent application Ser. No. 12/943,288 filed Nov. 10, 2010, which is a continuation of U.S. patent application Ser. No. 11/055,489 filed Feb. 11, 2005. The contents of each of the above-mentioned applications are incorporated herein by reference.
- The present invention relates generally to wireless telecommunication and more particularly to a system and method for modifying policy settings in an electronic device.
- Mobile electronic devices (MEDs) capable of computing, information storage and communications are increasingly becoming commonplace. MEDs typically integrate the functions of personal information management such as calendaring, data communications such as e-mail and world wide web browsing and telecommunications into a single device. Research In Motion Limited of Waterloo, Ontario, Canada, and PalmOne, Inc. of Milpitas, Calif. USA are two examples of manufacturers of such enhanced wireless electronic devices, and each offer a variety of products in this category.
- A typical MED contains a communications interface for establishing wireless communications with telephony and data networks serving different geographic regions. In addition a typical MED contains a microcomputer which controls most of the functionality of the MED and aids in processing of information that the MED is presented with.
- As part of its functionality, a MED is called upon to establish communications with a network through many different network access stations as the user of the MED roams through different geographic regions served by different network access station wireless carrier. Typically, each MED has a designated “home” region served by a “home” wireless carrier. All other regions are roaming regions. The characteristics of services provided when a MED accesses a network through its home region, as opposed to through a roaming region. Such service differences can include reduced connection security, reduced availability of certain types of communications such as bandwidth for data communications, and increased connection fees known as roaming charges. Moreover, the differences in service depend on the roaming region through which a connection is made. For example, availability of digital connections can vary from region to region.
- Variability of service between the home region and the roaming regions can present a significant problem to MED users or employers who pay for the services on behalf of such users. Typically, a user who wants to establish secure connections or avoid roaming charges, for example, monitors his or her location and uses wireless communication only in the roaming regions where secure connections are offered or where no roaming charges are incurred. This requires a knowledge of the geographic region covered and services offered by the each network. Moreover, employers paying for user's services, unlike users, have no way of monitoring individual MED locations and hence rely on individual user's vigilance in order to ensure secure connections or avoid roaming charges.
- It is an object of the present invention to provide a novel system and method for secure access that obviates or mitigates at least one of the above-identified disadvantages of the prior art.
- An aspect of the invention provides a subscriber device comprising an interface operable to conduct communications over a link with at least one base station in each of a plurality of geographic regions. The device also includes a microcomputer connected to the interface that is operable to maintain a policy associated with each region. The policy defines whether communications between the interface and the at least one base station are permitted for each region. The microcomputer permits the interface to communicate in accordance with the policy.
- The communications can include a plurality of different services. The services can include at least one of voice, emails, internet browsing and text messaging.
- The policy can permit one type of service to be performed in one specific region, while disallowing another type of service in the same specific region.
- The policy can disallow communications in a particular region if the communications within the region are conducted over an insecure link, or are otherwise insecure.
- The policy can disallow communications in a particular region if the communications within the region are conducted over an insecure link, or are otherwise insecure.
- The policy can disallow the communications in at least one of the regions if a financial cost for conducting the communications exceeds a predefined threshold.
- The links can include wireless links that can be based on one or more of CDMA, OFDM, AMPS, GSM, GPRS, Bluetooth™, infra-red and 802.11.
- The links can include wired links that can be based on Ethernet; USB; Firewire and RS-232.
- Another aspect of the invention provides a method of conducting communications from a subscriber device comprising the steps of: i) establishing a link with a base station from the subscriber device; ii) receiving an identifier from the base station at the subscriber device; iii) determining whether communications with the base station are permitted based on the identifier; and, iv) conducting the communications from the subscriber device only if the communications are permitted according to said determining step.
- Another aspect of the invention provides a server for communicating with a plurality of subscriber devices comprising a microcomputer operable to maintain a policy defining whether communications between at least one subscriber station and at least one base station are permitted. The server also an interface for delivering the policy to each of the at least one subscriber device.
- Another aspect of the invention provides a computer readable media operable to store a set of programming instructions. The programming instructions are for operating a server that is for communicating with a plurality of subscriber devices. The programming instructions are executable on a microcomputer associated with the server. The programming instructions are for rendering the microprocessor operable to maintain a policy defining whether communications between at least one subscriber station and at least one base station is permitted.
- Another aspect of the invention provides a computer readable media operable to store a policy for storage in a subscriber station. The policy defines whether communications between the subscriber station and a particular base station are permitted.
- The invention will now be described by way of example only, and with reference to the accompanying drawings, in which:
-
FIG. 1 is a block diagram of a system for modifying communication policy in accordance with an embodiment of the invention; -
FIG. 2 is a block diagram of the mobile electronic device ofFIG. 1 ; -
FIG. 3 is a block diagram of certain internal components of a mobile electronic device ofFIG. 1 ; -
FIG. 4 is a flowchart depicting a method of updating information in accordance with an embodiment of the invention; -
FIG. 5 is a flowchart depicting a method of establishing communication according to policy in accordance with an embodiment of the invention; -
FIG. 6 is another arrangement of the system ofFIG. 1 ; -
FIG. 7 is a block diagram of a system for modifying communication policy in accordance with another embodiment of the invention; and -
FIG. 8 is a block diagram of a system for modifying communication policy in accordance with an embodiment of the invention. - Referring now to
FIG. 1 , a wireless communication system in accordance with a first embodiment of the invention is indicated generally at 30.System 30 comprises a plurality of access stations 34 operable to wirelessly transceive across a variety ofgeographic ranges 38. In a present embodiment, station 34 1 transceivers across a firstgeographic range 38 1, station 34 2 transceivers acrossrange 38 2 and station 34 3 transceivers acrossgeographic range 38 3. Access stations 34 communicate wirelessly over a plurality oflinks 42. More specifically, station 34 1 covers firstgeographic range 38 1 by transmitting and receiving signals throughlink 42 1, station 34 2 covers secondgeographic range 38 2 throughlink 42 2 and base station 34 3 covers thirdgeographic range 38 3 throughlink 42 3. Access stations 34 are operated bydifferent wireless carriers 46. For example, stations 34 1 and 34 3 are operated bywireless carrier 46 1, whereas station 34 2 is operated bywireless carrier 46 2. In a present embodiment,system 30 is based on a known voice-based wireless telecommunication such as Global System for Mobile Communications (“GSM”) or Advanced Mobile Phone System (“AMPS”). - In
system 30, access stations 34 are also connected to anetwork 50 andnetwork 54 through a wired connection. In thisembodiment network 50 is the public switched telephone network (“PSTN”) andnetwork 54 is the Internet, but in other embodiments other types of networks can be employed. -
System 30 also includes a mobileelectronic device 58.Device 58 is owned byoffice 62 and operated by persons associated withoffice 62. As will be described in greater detail below,device 58 is operable to connect to network 50 via a station 34'slink 42 eachtime device 58 is located within a range respective to that access station 34. For example, wheneverdevice 58 is located withingeographic range 38 1,device 58 can connect to network 50 by linking with access station 34 1 throughlink 42 1, and wheneverdevice 58 is located withingeographic range 38 2,device 58 can connect to network 50 by linking with station 34 2 throughlink 42 2. - Various types of information can be communicated through a
link 42, including voice communications, data communications, etc. In particular, links 42 each carry a wireless carrier identifier WID, that identifies thewireless carrier 46 operating the respective access station 34 that carries thatparticular link 42. For example, ifdevice 58 is located withingeographic range 38 1, orrange 38 3device 58 would receive identifier WID1 throughlink 42 1. In addition, links 42 each carry an access station identifier AID, that identifies the access station 34 that carries thatparticular link 42. For example, ifdevice 58 is located withingeographic range 38 1,device 58 would receive identifier AID1 throughlink 42 1. Furthermore, links 42 carry the phone number (or other unique identifier) associated with eachdevice 58 that connects with an access station 34. For example, ifdevice 58 is located withingeographic range 38 1, station 34 1 would receive the phone number ofdevice 58 throughlink 42 1. Moreover, links 42 can be based on any number of different wireless communication formats such as analog or digital depending on the type of wireless communication method used. For example, when station 34 employs GSM for wireless communication, link 42 established by that station is a digital link. When station 34 employs AMPS for wireless communication, link 42 established by that station is an analog link. Unlike analog links, which send signals using a continuous stream, digital links transmit the communications in packetized bit streams.Digital links 42 based on GSM offer enhanced security overanalog links 42 based on AMPS. Interception and reconstruction of a digital link involves more highly specialized and expensive equipment than an analog link. Moreover,digital links 42 can be encrypted using methods such as stream ciphers, resulting in an encrypted communication betweendevice 50 and access station 34. In thisembodiment link 42 1 is a digital link, whereaslinks - Referring now to
FIG. 2 ,device 58 is shown in greater detail.Device 58 is based on the computing environment and functionality of a personal digital assistant with wireless voice telephony capabilities. However, it is to be understood thatdevice 58 can be based on the construction and functionality of any mobile electronic device that can be connected to a wireless network as well. Such devices include cellular telephones or laptops computers connected to wireless networks. In a present embodiment,electronic device 58 includes, a housing 66, which frames anLCD display 70, aspeaker 74, amicrophone 78, atrackwheel 82, and a keyboard 86.Trackwheel 82 can be inwardly depressed along the path of arrow “A” as a means to provide additional user-input. It will be understood that housing 66, can be made from any suitable material as will occur to those of skill in the art. - Referring now to
FIG. 3 , a block diagram of certain internal components withindevice 58 is shown.Device 58 is based on a microcomputer that includes a processor 90. Processor 90 is connected to a read-only-memory (“ROM”) 94, which contains a plurality of applications executable by processor 90 that enablesdevice 58 to perform certain functions. Processor 90 is also connected to a random access memory unit (“RAM”) 98 and apersistent storage device 102 which is responsible for various non-volatile storage functions ofdevice 58. Processor 90 can send output signals to various outputdevices including display 70 andspeaker 74. Processor 90, can also receive input from various inputdevices including microphone 78 and keyboard 86. Processor 90 is also connected to a modem andradio 106. Modem andradio 106 are operable to connectdevice 58 to wireless access stations 34 in range ofdevice 58, in the usual manner, via anantenna 114. - Referring back to
FIG. 1 ,office server 110 is a computing device, (such as a personal computer, a server, or the like) that is typically comprised of hardware suitable for server type functions, and includes a central processing unit, random access memory, hard-disk storage and a network interface for communicating overnetwork 54.Office server 110 stores the office connection policy (“CP”)database 118, used for determining whichaccess stations 34 adevice 58 can link with in order to connect to a network. Table I shows the initial settings of anexample CP database 118 ofoffice 62 fordevice 58 when it attempts to connect tonetwork 50, namely when a wireless voice call is being made. -
TABLE I Example record of a CP Database 118 ofOffice 62Record # 1Field 2Field 1Access Field 3 Device Station Policy for Identifier Identifier Voice Calls 555-555- AID1 Allow 5555 Communication AID2 Allow Communication AID3 Allow Communication - Table I shows one record, labelled
Record 1, which reflects information corresponding todevice 58. It should now be apparent thatdatabase 118 can include additional records for anyadditional devices 58 that are included insystem 30. - Describing Table I in greater detail,
Field 1 contains the unique identifier ofdevice 58, in this case its phone number “555-555-5555”.Field 2 contains a list of unique identifiers, AID, associated with access stations 34. Field 3 contains the communications policy ofoffice 62 for each access station 34, in this case simply the decision to either “Allow Communication”, or “Disallow Communication”. In this case a communication is allowed through access stations AID1, AID2 and AID3. (It should now be apparent that other communications policies (rather than “allow” or “disallow” communication) can be stored inCP databases device 58 is in range of some access stations and allow limitless calls when in range of others. It should also be apparent that a combination of policies can also be used.) - By the same token,
device 58 also includesCP database 122 that includes data corresponding to the information stored inCP database 118. The initial settings ofCP database 122 are shown in Table II. -
TABLE II Example of a CP Database 122 ofDevice 58Field 1Access Field 2 Station Policy for Identifier Voice Calls AID1 Allow Communication AID2 Allow Communication AID3 Allow Communication -
Field 1 ofdatabase 122 corresponds to Field 2 ofdatabase 118, andField 2 ofdatabase 122 corresponds to Field 3 ofdatabase 118. Because initially, when the user first acquires the device fromoffice 62,device database 122 has the same content as theoffice database 118. - The policy, as described by
CP database 118, is set byoffice 62 and updated byoffice 62 from time to time as needed. For example,office 62 may desire thatdevice 58 should place wireless calls throughnetwork 50 only when a digital link is available between an access station 34 anddevice 50 to reduce the chances that the wireless portion of the call is intercepted. According to thispolicy office 62 would not wantdevice 58 to connect to network 50 through access stations 34 2 or 34 3 since stations 34 2 34 3 only provide ananalog link 42 2 42 3 based on AMPS which is highly susceptible to interception. Thus,policy database 118 would be updated to reflect the new policy as shown in Table III. -
TABLE III Example record of an Updated CP Database 118 ofOffice 62Record # 1Field 2Field 1Access Field 3 Device Station Policy for Identifier Identifier Voice Calls 555-555- AID1 Allow 5555 Communication AID2 Disallow Communication AID3 Disallow Communication - Notice that Field 3 associated with AID2 has been changed to “Disallow Communication” to reflect the new policy that
device 58 should not connect to network 50 through access station 34 2. - At this
point device database 122 no longer contains the same policies asoffice database 118.Office 110 is operable to updateCP database 122 ofdevice 58 by communicating withdevice 58 whendevice 58 connects to network 54. - Referring to
FIG. 4 , a method for updatingpolicy database 122 is indicated generally at 200. In order to assist in the explanation of the method, it will be assumed thatmethod 200 is operated usingsystem 30, and thatdevice 58, as shown inFIG. 1 , is located inrange 38 1. Furthermore, the following discussion ofmethod 200 will lead to further understanding ofsystem 30 and its various components. (However, it is to be understood thatsystem 30 and/ormethod 200 can be varied, and need not work exactly as discussed herein in conjunction with each other, and that such variations are within the scope of the present invention). - Referring back to
FIG. 4 , at step 210 a link is established. As an example of howstep 210 can be performed,device 58 establisheslink 42 1 with station 34 1 which is serving therange 38 1. Moving to step 220, a connection is made with an office server. Continuing with the example, whenstep 220 is performeddevice 58 will uselink 42 1 established atstep 210 to connect tonetwork 54, and throughnetwork 54, will eventually make a connection tooffice server 110. -
Method 200 will then advance fromstep 220 to step 230, at which point the new policy is transferred. Continuing with the example,database 122 is updated by transferring the new policy todevice 58. The updatedCP database 122 is shown in Table IV. -
TABLE IV Example of an Updated CP Database 122 ofDevice 58Field 1Access Field 2 Station Policy for Identifier Voice Calls AID1 Allow Communication AID2 Disallow Communication AID3 Disallow Communication - To summarize the example,
database 122 originally held the contents of Table II, but upon performance ofmethod 200 using the specific example,database 122 now holds the contents of Table IV. Thus, a policy administered fromoffice 62 has remotely changed base stations 34 that are accessible bydevice 58 from all access stations 34 down to access station 34 1. - Referring now to
FIG. 5 , a method for placing a wireless call throughnetwork 50, according toCP database 122, is indicated generally at 300. In order to assist in the explanation of the method, it will be assumed that method 300 is operated usingsystem 30 and thatdevice 58, as shown inFIG. 1 , is located inrange 38 1. Furthermore, the following discussion of method 300 will lead to further understanding ofsystem 30 and its various components. (However, it is to be understood thatsystem 30 and/or method 300 can be varied, and need not work exactly as discussed herein in conjunction with each other, and that such variations are within the scope of the present invention.) - Referring back to
FIG. 5 , at step 310 a link is established. As an example of howstep 310 can be performed,device 58 establisheslink 42 1 with station 34 1 which is servingrange 38 1. Moving to step 320, an identifier is received. Continuing with the example, whenstep 320 is performeddevice 58 receives the identifier associated with an access station 34. In this case, the identifier is AID1 which is the identifier of access station 34 1. - Method 300 then advances from
step 320 to step 330, at which point a determination is made as to whether communication is permissible. In this example, the office policy is examined to determine whether communications through access station 34 1 are permitted. To perform this step,device 58 examines the office policy regarding wireless calls associated with identifier AID1 inCP database 122. In this case, the policy associated with AID1 is “Allow Communication”. Accordingly,step 350 is performed next and communication is established. Accordingly, in this example,device 58 places a wireless call throughnetwork 50. - Referring to
FIG. 6 ,device 58 now moves to range 38 2, served byaccess station 42 2. In order to place a wirelesscall using device 58, according toCP database 122, method 300 is performed a second time. - Referring back to
FIG. 5 , at step 310 a link is established. As an example of howstep 310 can be performed during this second performance of method 300,device 58 establisheslink 42 2 with station 34 2 which is servingrange 38 2. Moving to step 320, an identifier is received. Continuing with the example, whenstep 320 is performeddevice 58 receives the identifier associated with access station 34. In this case, the identifier is AID2 which is the identifier of access station 34 2. - Method 300 then advances from
step 320 to step 330, at which point a determination is made as to whether communication is permissible. In this example, the office policy is examined to determine whether communications through access station 34 2 are permitted. To perform this step,device 58 examines the office policy regarding wireless calls associated with identifier AID1 inCP database 122. In this case, the policy associated with AID2 is “Disallow Communication”, as shown inField 2 of Table IV. Accordingly,step 340 is performed next and communication is not permitted. Accordingly, in thisexample device 58 is prevented from placing a call. - Referring now to
FIG. 7 , a system for secure access in accordance with another embodiment of the invention is indicated generally at 30 a. System 30 a is substantially the same assystem 30, and like elements in system 30 a bear the same reference as like elements insystem 30, except followed by the suffix “a”. System 30 a differs fromsystem 30 in that in system 30 a different policy databases are used. - In this embodiment, office 62 a desires that device 58 a place wireless calls through network 50 a only using wireless carrier 46 a 1 since wireless carrier 46 a 1 offers cheaper connections than other carriers 46 a. According to this policy, office 62 a would not want device 58 a to connect to network 50 a through
access station 34 a 2 sincestation 34 a 2 is operated by wireless carrier 46 a 2. CP database 118 a reflecting this policy is shown in Table V. -
TABLE V Example record of an Updated CP Database 118a of Office 62a Record # 1 Field 2Field 1Wireless Device Carrier Field 3 Identifier Identifier Policy 555-555- WID1 Allow 5555 Communication WID2 Disallow Communication - Notice that Field 3 associated with WID2 is set to “Disallow Communication” to reflect the new policy that device 58 a should not connect to network 50 a through wireless carrier 46 a 2. Such a policy that limits communications according to carrier could be desired for a number of reasons, such as reducing or controlling roaming charges, such that a particular device 58 a can only perform communications in a home region. Other criteria for setting policies that reside in device 58 a which define
access stations 34 a that are accessible to device 58 a will now occur to those of skill in the art. - By the same token, device 58 a also includes a CP database 122 a that includes data that corresponds with the information stored in connection policy database 118 a. Contents of CP database 122 a is updated by performing
method 200, shown inFIG. 4 in substantially the same manner asdatabase 122 insystem 30. The updated CP database 122 a is shown in Table IV. -
TABLE VI Example of an Updated CP Database 122a of Device 58a Field 1 Wireless Field 2 Carrier Policy for Identifier Voice Calls WID1 Allow Communication WID2 Disallow Communication - Referring back to
FIG. 7 , device 58 a is in range 38 a 2, served by access station 42 a 3. In order to place a wireless call using device 58 a, according to CP database 122 a, method 300 is performed. - Referring back to
FIG. 5 , at step 310 a link is established. As an example of howstep 310 can be performed, device 58 a establishes link 42 a 3 withstation 34 a 3 which is serving range 38 a 3. Moving to step 320, an identifier is received. Continuing with the example, whenstep 320 is performed device 58 a receives the identifier associated with wireless carrier 46 a. In this case, the identifier is WIDa1 which is the identifier associated with wireless carrier 46 a 1operating access station 34 a 3. - Method 300 then advances from
step 320 to step 330, at which point a determination is made as to whether communication is permissible. In this example, the office policy is examined to determine whether communications through access stations operated by wireless carrier 46 a 1 are permitted. To perform this step, device 58 a examines the office policy regarding wireless calls associated with identifier WIDa1 in CP database 122 a. In this case, the policy associated with WIDa1 is “Allow Communication”, as shown inField 2 of Table VI. Accordingly,step 350 is performed next and communication is established. Accordingly, in this example, device 58 a places a wireless call through network 50 a. - Referring now to
FIG. 8 , a system for secure access in accordance with another embodiment of the invention is indicated generally at 30 b.System 30 b is substantially the same assystem 30, and like elements insystem 30 b bear the same reference as like elements insystem 30, except followed by the suffix “b”.System 30 b differs fromsystem 30 in that insystem 30 b alllinks 42 are digital and that different policy databases are used. - In
system 30 b office 62 b employs CP database 118 b which is substantially the same asCP database 118 but has additional fields used for determining whichaccess stations 34 b adevice 58 b can link with in order to connect to different networks when using different applications (e.g. voice calls, web browsing, and e-mail). For example, an additional field is used for determining whichaccess stations 34 b adevice 58 b can link to in order to connect to e-mail through the Internet (network 54 b). A further field is used for determining which access stations are linkable for surfing the web through the Internet (network 54 b). Table VII shows an example of database 118 b of office 62 b fordevice 58 b. -
TABLE VII Example record of a Connection Policy Database 118b of Office 62b Field 4 Field 5Field 2Policy for Policy for Field 1Access Field 3 E-mail Web-surfing Device Station Policy for Through The Through The Identifier Identifier Voice Calls Internet Internet 555-555- AID1 Allow Allow Disallow 5555 Communication Communication Communication AID2 Allow Allow Disallow Communication Communication Communication AID3 Allow Disallow Allow Communication Communication Communication - Table VII shows one record, labelled
Record 1, which reflects information corresponding todevice 58 b. It should now be apparent that database 118 b can include additional records for anyadditional devices 58 b that are included insystem 30 b, or additional fields for additional applications available ondevice 58 b. - Describing Table VII in greater detail,
Fields 1 through 3 contain the same information asCP database 118, shown in Table I. Field 4 contains the communications policy of office 62 b for eachaccess station 34 b, in this case simply the decision to either “Allow Communication”, or “Disallow Communication”, to be used whendevice 58 b attempts to check e-mail through network 54 b. In this case,device 58 b can only check e-mail when connected to network 54 b throughaccess stations 34 b 1 and 34 b 2. Note also thatdevice 58 b is permitted to place voice calls through any of theaccess stations 34 b. - Continuing with the description of Table VII,
Field 5 contains the communications policy of office 62 b for eachaccess station 34 b, in this case simply the decision to either “Allow Communication”, or “Disallow Communication”, to be used whendevice 58 b attempts to surf the web through network 54 b. In thiscase device 58 b can surf the web only throughaccess stations 34 b 3. (It should now be apparent that other communications policies (rather than “allow” or “disallow” communication) can be stored inCP databases 118 b, and 122 b. For example, a communication policy may limit the data bandwidth whendevice 58 b is in range of someaccess stations 34 b and allow limitless bandwidth when in range of others. It should also be apparent that a combination of policies can also be used.) -
Device 58 b also includes aCP database 122 b that includes data that corresponds with the information stored in connection policy database 118 b.CP database 122 b is updated by performingmethod 200, shown inFIG. 3 in substantially the same manner asCP database 122 insystem 30. The updatedCP database 122 is shown in Table VIII. -
TABLE VIII Example of a CP Database 122b ofDevice 58bField 3 Field 4 Field 1Policy for Policy for Access Field 2 E-mail Web-surfing Station Policy for Through The Through The Identifier Voice Calls Internet Internet AID1 Allow Allow Disallow Communication Communication Communication AID2 Allow Allow Disallow Communication Communication Communication AID3 Allow Disallow Allow Communication Communication Communication -
Field 1 ofdatabase 122 b corresponds to Field 2 of database 118 b,Field 2 ofdatabase 122 b corresponds to Field 3 of database 118 b, Field 3 ofdatabase 122 b corresponds to Field 4 of database 118 b and Field 4 ofdatabase 122 b corresponds to Field 5 of database 118 b. - Referring back to
FIG. 8 , which gives an example arrangement,device 58 b is range 38b 1, served by access station 34 1. Whendevice 58 b attempts to access e-mail, method 300 is performed again to determine the permissibility of the e-mail access. Performance of method 300 usingsystem 30 b is substantially the same as the performance of method 300 using system30 except that Field 3 ofdatabase 122 b is used to determine the policy as opposed to usingField 2 to determine the policy for voice calls. In this example, the e-mail policy associated withaccess station 34 b 1 (as identified by AIDb1) is to allow communications. Thus,device 58 b will be able to access e-mail. Whendevice 58 b attempts to surf the web, on the other hand, performance of method 300 will disallow access to the web since the policy associated with web surfing in region 38 1 (specified by the first row of Field 4 of Table VIII) is to disallow communication. - While only specific combinations of the various features and components of the present invention have been discussed herein, it will be apparent to those of skill in the art that subsets of the disclosed features and components and/or alternative combinations of these features and components can be utilized, as desired. For example, although GSM and AMPS are wireless communication methods contemplated, it should now be apparent that other wireless communication methods such as the Code Division Multiple Access (“CDMA”) for digital connections and the Total Access Communication System (“TACS”) for analog connections are all within the scope of the invention. Other methods include General Packet Radio Service (“GPRS”), and Orthogonal Frequency Division Multiplexing (“OFDM”), amongst others.
- In another variation,
database 122 insystem 30 can be updated through a direct connection betweendevice 58 andoffice server 110. It should now be apparent that this direct connection can take the form of a wired connection such as a Universal Serial Bus (“USB”) connection, a cross-linked peer to peer Ethernet connection, or a wireless connection such as a Bluetooth connection, an infrared (IR) connection, or a peer to peer IEEE 801.11 (e.g. 802.11b, 802.11g or other 802.11 variants) connection. In yet another variation,database 122 could be updated through a Local Area Connection (“LAN”) to which bothdevice 58 andoffice server 110 are connected. - In another variation, different criteria other than location of
device 58 can be used for enabling, disabling or otherwise varying the communication capabilities ofdevice 58. For example, time can be used as a determinant of communication capabilities. Accordingly,device 58 and certain applications performing ondevice 58, such as e-mail, could be allowed to communicate during certain periods of time such as daytime, and certain other applications, such as voice calls, could be able to communicate during other time periods such as night time. These policies can be designed, for example, to take advantage of periods during which certain services are offered at reduced costs by wireless carriers. Thus,office 62 can set up apolicy database 118 which allows voice calls only during evenings and weekends when voice calls are cheaper. As another example, policies can be set up to choose between different wireless carriers when each region is served by multiple carriers. So, for example, if aregion 38 is served by 2 access stations 34,device 58 can determine which access station to use consulting the communications policy (namely during the performance of method 300). Accordingly, when there is a choice of carriers, policies could be designed to select more secure, less expensive or otherwise more desirable wireless carrier over those carriers that are less secure, more expensive or otherwise less desirable. - In yet another variation,
device CP database 122 could be updated using different methodologies. For example, the transfer ofCP database 118 could be made selectively, transferring the database only when a difference is found betweenCP database database 118 can be compared to the equivalent fields indatabase 122 to determine whether there are any differences. Alternatively, sizes of the database files or the date of modification of these files could be compared. Moreover, the comparison can be done either byoffice server 110,device 58 or some other computer trusted with maintaining synchronized CP databases between the office and the roaming devices. All these methods, and other methods for determining whether a CP database should be transferred todevice 58 are within the scope of this invention. - In other variations, the policy can be stored in forms other than a database such as a lookup table. Moreover, the policy can be stored at a computer other than the office server. For example, the policy can be stored on routers and other dedicated computing devices. Also, the policy could be stored on a computer or other electronic device which is operated by an entity other than the office that operates the mobile devices.
- While portions of the foregoing description may individually reference
systems - The above-described embodiments of the invention are intended to be examples of the present invention and alterations and modifications may be effected thereto, by those of skill in the art, without departing from the scope of the invention which is defined solely by the claims appended hereto.
Claims (17)
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US16/598,018 Active US11381569B2 (en) | 2005-02-11 | 2019-10-10 | System and method of modifying policy settings in an electronic device |
US17/835,603 Pending US20220303277A1 (en) | 2005-02-11 | 2022-06-08 | System and Method of Modifying Policy Settings In An Electronic Device |
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US20060183461A1 (en) | 2005-02-11 | 2006-08-17 | Research In Motion Limited | System and method of modifying policy settings in an electronic device |
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EP1993309B1 (en) * | 2007-05-16 | 2012-07-04 | Nokia Siemens Networks Oy | Mobility Policy in a WiMAX communications system |
US8406748B2 (en) | 2009-01-28 | 2013-03-26 | Headwater Partners I Llc | Adaptive ambient services |
JP5941632B2 (en) * | 2011-08-10 | 2016-06-29 | 株式会社日立ソリューションズ | Network system, mobile communication terminal and program |
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US20200045551A1 (en) | 2020-02-06 |
US11381569B2 (en) | 2022-07-05 |
US10524129B2 (en) | 2019-12-31 |
US9596601B2 (en) | 2017-03-14 |
US20170164202A1 (en) | 2017-06-08 |
US20110059725A1 (en) | 2011-03-10 |
US20060183461A1 (en) | 2006-08-17 |
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