Integrated mobile unit location services and cellular telephone services

• US 5,778,315 A
• Filed: 05/16/1995
• Issued: 07/07/1998
• Est. Priority Date: 05/16/1995
• Status: Expired due to Term

• Current Assignee: TeleTrac Incorporated (Vontier Corp.)
• Original Assignee: TeleTrac Incorporated (Vontier Corp.)
• Inventors: Proietti, Mario
• Primary Examiner(s): Urban, Edward F.
• Application Number:
  US08/442,194
• Time in Patent Office: 1,148 Days
• Field of Search: 455/11.1, 455/17, 455/33.1, 455/53.1, 455/507, 455/54.1, 455/54.2, 455/56.1, 455/517, 455/510, 455/524, 455/422, 455/432, 455/439, 455/445, 455/409, 455/461, 455/419, 379/58-59, 379/60
• US Class Current: 455/419
• CPC Class Codes: H04W 4/02 Services making use of location information
• CPC Class Codes: H04W 8/265 for initial activation of new user

Abstract

An apparatus and method for sharing cellular telephone subscriptions among a plurality of mobile units in a mobile unit location system. Requests for cellular service are transmitted from a mobile unit to a cellular phone identity service provider via the mobile unit location system. The service provider grants or denies the request. If the request is granted a cellular phone identity is provided to the mobile unit location service for downloading into the mobile unit. The cellular phone connected to the mobile unit is then programmed with the cellular phone identity so that cellular service can be initiated.

Claims

1. A method of sharing cellular phone identities among a plurality of mobile units in a mobile unit location system, comprising the steps of:

(a) transmitting a request for a cellular phone identity from a mobile unit to a cellular phone identity service provider via the mobile unit location system;

(b) receiving the cellular phone identity from the cellular phone identity service provider via the mobile unit location system in response to the transmitted request; and

(c) programming a cellular phone connected to the mobile unit with the cellular phone identity received from the cellular phone identity service provider, said cellular phone not being required to have a permanent identity in a cellular phone network.

2. The method of claim 1 above, wherein the cellular phone identity comprises a mobile identification number.

3. The method of claim 2 above, wherein the cellular phone identity further comprises an electronic serial number.

4. The method of claim 2 above, wherein the cellular phone identity further comprises operational parameters.

5. The method of claim 4 above, wherein the operational parameters comprise a service provider selection.

6. The method of claim 1 above, wherein the method further comprises the step of transmitting a location signal from the mobile unit to the mobile unit location system, so that the mobile unit location system can determine a location of the mobile unit, and the receiving step further comprises the step of receiving a cellular phone identity from the cellular phone identity service provider based on the location of the mobile unit.

7. The method of claim 6 above, further comprising receiving a service provider selection from the cellular phone identity service provider based on a location of the mobile unit.

8. The method of claim 6 above, further comprising receiving a service provider selection from the cellular phone identity service provider based on a location of a receiver of the transmitted request in the mobile unit location system.

9. The method of claim 1 above, further comprising retaining the cellular phone identity in the cellular phone for a pre-determined interval.

10. The method of claim 1 above, further comprising transmitting a release message to the cellular phone identity service provider via the mobile unit, thereby relinquishing the cellular phone identity for another cellular phone.

11. The method of claim 10 above, further comprising erasing the cellular phone identity from the cellular phone when the cellular phone identity is relinquished.

12. The method of claim 10 above, further comprising erasing the cellular phone identity from the cellular phone upon command from the cellular phone identity service provider.

13. The method of claim 10 above, further comprising erasing the cellular phone identity from the cellular phone upon detection of a specified condition within the cellular phone.

14. The method of claim 1 above, wherein each cellular phone identity is used by only one cellular phone at a time.

15. The method of claim 1 above, further comprising receiving a cellular phone identity from a pool of sharable cellular phone identities managed by the cellular phone identity service provider.

16. The method of claim 15 above, wherein the pool of sharable cellular phone identities is comprised of sub-pools organized by according to a specified relationship among the cellular phone identities.

17. The method of claim 1 above, further comprising initiating a call from the cellular phone to a cellular telephone service provider.

18. The method of claim 1 above, further comprising restricting the cellular phone to calling one or more pre-defined phone numbers.

19. The method of claim 1 above, further comprising monitoring usage of the cellular phone and reporting the usage.

20. A method of sharing cellular phone identities among a plurality of mobile units in a mobile unit location system, comprising the steps of:

(a) receiving a request for a cellular phone identity from a mobile unit via the mobile unit location system; and

(b) transmitting the cellular phone identity to the mobile unit via the mobile unit location system in response to the received request, so that a cellular phone connected to the mobile unit can be programmed with the cellular phone identity, said cellular phone not being required to have a permanent identity in a cellular phone network.

21. The method of claim 20, wherein said receiving step comprises the steps of:

transmitting a paging signal to said mobile unit from said mobile unit location system; and

receiving said paging signal at said mobile unit and generating a response comprising a call destination and an identification code corresponding to said mobile unit.

22. The method as claimed in claim 21, wherein said receiving step further comprises the step of determining the location of said mobile unit using the arrival time of said request at each of a plurality of receive sites in said mobile unit location system.

23. The method as claimed in claim 21, wherein said receiving step further comprises the step of determining the location of said mobile unit using the arrival time of said response at each of a plurality of receive sites in said mobile unit location system.

24. The method as claimed in claim 21, wherein said receiving step further comprises the steps of:

receiving said response at said mobile unit location system;

verifying said mobile unit using said identification code; and

transmitting a service signal from said mobile unit location system to a cellular service provider.

25. The method as claimed in claim 24, wherein said cellular service provider is located remotely with respect to said mobile unit location system.

26. The method as claimed in claim 24, wherein said cellular service provider comprises a computer connected directly to said mobile unit location system.

27. The method as claimed in claim 24, wherein said transmitting step comprises the steps of:

verifying said request; and

selecting a cellular phone identity from a plurality of cellular phone identities in response to said request if said request is approved.

28. The method as claimed in claim 27, wherein said mobile unit uses said cellular phone identity for a duration of time determined using criteria selected from the group consisting of a predetermined period of time, a predetermined number of calls, duration of membership within a fleet of mobile units, and location of said mobile unit within a predefined geographic area.

29. The method as claimed in claim 27, wherein said verifying step comprises the step of automatically approving said request if said call destination is an emergency response unit.

30. The method as claimed in claim 20, further comprising the steps of:

generating a status message during a cellular call involving said mobile unit; and

transmitting said status message from said mobile unit to a cellular service provider via said mobile unit location system, said cellular service provider using said status message to perform operations selected from the group consisting of monitoring usage of cellular service at said mobile unit, billing for cellular service usage, and sending control messages to said mobile unit.

31. The method as claimed in claim 30, further comprising the steps of:

generating a release message after a cellular call involving said mobile unit; and

transmitting said release message from said mobile unit to said cellular service provider via said mobile unit location system.

32. A method of sharing cellular phone identities among a plurality of mobile units in a mobile unit location system, comprising the steps of:

(a) receiving a call request from a requester for a specific cellular phone connected to a specific mobile unit;

(b) selecting and transmitting a cellular phone identity to the specific mobile unit via the mobile unit location system in response to the call request, so that the specific cellular phone connected to the mobile unit can be programmed with the cellular phone identity, the specific cellular phone not being required to have a permanent identity in a cellular phone network; and

(c) responding to the call request in a manner that allows the requester to contact the specific cellular phone.

33. The method as claimed in claim 32, wherein said receiving step comprises the steps of:

receiving said call request at one of a cellular service provider and said mobile unit location system, said mobile unit location system being operable to forward the call request to said cellular service provider; and

verifying said call request.

34. The method as claimed in claim 33, wherein said selecting step comprises the step of transmitting said cellular phone identify from said cellular service provider to said mobile unit location system.

35. The method as claimed in claim 33, wherein said receiving step comprises the steps of:

receiving a code entered by said requester at said mobile unit location system;

processing said code to provide said requester with at least one of a plurality of options selected from the group consisting of sending a coded message to said specific mobile unit via a message signal generated and transmitted by said mobile unit location system, initiating a cellular call to said specific mobile unit, establishing a data connection with said specific mobile unit, and receiving data relating to the location of said specific mobile unit and determined by said mobile unit location system.

36. A system for allocating cellular phone identities to mobile units on a temporary basis comprising:

a mobile unit location system having a computer and a communication link between said computer and each of said mobile units;

a cellular service provider computer connected to said computer in said mobile unit location system;

a mobile unit location system transceiver located in each mobile unit for communicating with said computer;

a cellular phone transceiver located in each mobile unit; and

a processor in each of said mobile units, said processor being connected to said mobile unit location system transceiver and said cellular phone transceiver, said processor being programmable to operate said cellular phone transceiver in response to signals generated by and received from said mobile unit location system, said mobile unit location system being configured to establish a cellular call at one of said mobile units by communicating with said cellular service provider and transmitting a cellular phone identity selected by said cellular service provider to said mobile unit using a corresponding said communication link, said processor being programmable to receive said cellular phone identity via said mobile unit location system transceiver, to store said cellular phone identity in a memory device corresponding to said processor and to command said cellular phone transceiver to operate in accordance with said stored cellular phone identity.

37. A system as claimed in claim 36, wherein said processor is programmable to erase said cellular phone identity from said memory device after a predetermined duration of time selected from the group consisting of upon receipt of a command from at least one of said mobile unit location system and said cellular service provider to release said cellular phone identity, after said user of said mobile unit indicates the end of a cellular call, after exceeding a predetermined limit on the number of calls that can be established using said cellular phone identity, and after a predetermined amount of time has elapsed since said cellular phone identity was allocated to said mobile unit.