Method and system for two-way initiated data communication with wireless devices

• US 20030028671A1
• Filed: 06/10/2002
• Published: 02/06/2003
• Est. Priority Date: 06/08/2001
• Status: Abandoned Application

• Current Assignee: 4thpass, Inc. (Motorola Solutions, Inc.)
• Original Assignee: 4TH Pass Incorporated
• Inventors: Heller, Geoffrey S., Sharma, Vineet R., Nguyen, Ngochan T., Gow, Edward L., Mehta, Samir Narendra, Jansen, Markus L., Ramadan, Mazin
• Application Number:
  US10/167,240
• Publication Number:
  US 20030028671A1
• Time in Patent Office: Days
• US Class Current: 709/245
• CPC Class Codes: H04L 61/2514 between local and global IP addresses
• CPC Class Codes: H04L 61/2567 for reachability, e.g. inquiring the address of a correspondent behind a NAT server
• CPC Class Codes: H04L 61/2575 using address mapping retrieval, e.g. simple traversal of user datagram protocol through session traversal utilities for NAT [STUN]
• CPC Class Codes: H04L 61/4511 using domain name system [DNS]
• CPC Class Codes: H04L 61/4557 Directories for hybrid networks, e.g. including telephone numbers
• CPC Class Codes: H04L 61/5007 Internet protocol [IP] addresses
• CPC Class Codes: H04L 61/5014 using dynamic host configuration protocol [DHCP] or bootstrap protocol [BOOTP]
• CPC Class Codes: H04L 61/5038 for local use, e.g. in LAN or USB networks, or in a controller area network [CAN]
• CPC Class Codes: H04L 67/02 based on web technology, e.g. hypertext transfer protocol [HTTP]
• CPC Class Codes: H04L 67/04 specially adapted for terminals or networks with limited capabilities; specially adapted for terminal portability
• CPC Class Codes: H04L 67/14 Session management for real-time applications in data packet communications networks H04L65/1066
• CPC Class Codes: H04L 67/55 Push-based network services
• CPC Class Codes: H04L 69/329 in the application layer [OSI layer 7]
• CPC Class Codes: H04L 9/40 Network security protocols
• CPC Class Codes: H04W 8/26 Network addressing or numbering for mobility support
• CPC Class Codes: H04W 80/04 Network layer protocols, e.g. mobile IP [Internet Protocol]

Abstract

Methods and systems for providing two-way initiated, bi-directional communication with wireless devices using connection-based or connection-less protocols, such as, for example, TCP/IP and UDP/IP, are provided. Example embodiments provide an Address Management Proxy System (“AMPS”), which enables devices and systems connected to a public internet, such as the Internet, to initiate communication with and to send data to wireless devices connected to a private wireless network, without exposing the non-routable private addresses of these wireless devices. The AMPS allocates a public (routable) network address for temporarily use by a requesting device on a public network to communicate with a wireless device on a wireless network. In one embodiment, a pool of public addresses, for example, public IP addresses, is maintained by the AMPS and allocated dynamically to wireless network devices as required. In one embodiment, the AMPS comprises one or more modified DNS/API servers, one or more Address Proxy/Routers, an Address Management Data Server, one or more data repositories, and optionally a load balancer. The AMPS DNS'"'"'/API server receives a request from a device on a public network for a particular wireless device, and returns an appropriate temporary public address, which is internally mapped to the private address of the wireless device. The public address is then usable by the device on the public network to send data to the wireless device.

Claims

1. A method in a computer network environment that is connected to a wireless communications network through an address management proxy system, the wireless communications network connected to a wireless device using a private network address of the wireless communications network, the wireless device having an associated unique identifier, the address management proxy system having a public network address of the computer network environment, and the computer network environment connected to a wired device using a public network address of the computer network environment, comprising:

under control of the wired device,

using the public network address of the address management proxy system, sending a request to the address management proxy system for an indication of a public network address of the computer network environment to use for communicating with the wireless device, the request indicating the unique identifier associated with the wireless device;

under control of the address management proxy system,

receiving the request for the indication of the public network address;

determining a public network address from a plurality of available public network addresses of computer network environment;

associating the determined public network address with the private network address of the wireless device that corresponds to the indicated unique identifier; and

forwarding an indication of the determined public network address to the wired device; and

under control of the wired device,

receiving the indicated public network address; and

sending data to the wireless device using the indicated public network address, such that the wired device perceives that the wired device is communicating directly with the wireless device.

2. The method of claim 1, further comprising:

under control of the address management proxy system,

receiving the data sent from the wired device;

determining the private network address that is associated with the indicated public network address; and

routing the received data to the private network address over the wireless communication network in a manner that is transparent to the wired device.

3. The method of claim 1 wherein the computer network environment is the Internet and each public network address is specified in accordance with Internet Protocol (IP) addressing conventions.

4. The method of claim 1 wherein the computer network environment is an ATM network.

5. The method of claim 1 wherein the indicated public network address is the public network address of the address management proxy system, wherein data sent from the wired device indicates the unique identifier of the wireless device, and wherein the address management proxy system stores and forwards the data to the wireless device associated with the indicated unique identifier.

6. The method of claim 1 wherein the indicated public network address is received as a result of a call by the wired device to an address mapping function of the computer network environment.

7. The method of claim 6 wherein the address mapping function is a standard function of the computer network environment.

8. The method of claim 6 wherein the address mapping function is a GetHostByName function.

9. The method of claim 1 wherein the indicated public network address is received as a result of a call by the wired device to a function that returns a host system address and a port specification.

10. The method of claim 9 wherein the function is a customized API.

11. The method of claim 9 wherein the function supports an XML interface.

12. The method of claim 1, further comprising:

under control of the wireless device, sending data to the wired device using the public network address of the wired device, thereby performing bi-directional communication.

13. The method of claim 1 wherein a virtual end-to-end connection is established between the wired device and the wireless device.

14. The method of claim 1 wherein a connectionless communications path is established between the wired device and the wireless device.

15. A computer network environment comprising:

a wireless device connected to a wireless communications network using a private network address of the wireless communications network, the wireless device having an associated unique identifier;

a wired device connected to the computer network environment using a public network address of the computer network environment, that is structured to;

request an indication of a public network address of the computer network environment to use for communicating with the wireless device, the request indicating the unique identifier associated with the wireless device,

receive the indicated public network address, and,

send data to the wireless device using the indicated public network address, such that the wired device communicates directly with the wireless device using a virtual end-to-end connection; and

an address management proxy system connected to the computer network environment using a public network address of the computer network environment, that is structured to;

receive the request from the wired device,

determine a public network address from a plurality of available public network addresses of computer network environment,

associate the determined public network address with the private network address of the wireless device that corresponds to the indicated unique identifier, and

forward an indication of the determined public network address to the wired device.

16. The computer network environment of claim 15 wherein the address management proxy system is further structured to:

receive the data sent from the wired device,

determine the private network address that is associated with the indicated public network address, and

route the received data to the private network address over the wireless communication network in a manner that is transparent to the wired device.

17. The computer network environment of claim 15 wherein the computer network environment is the Internet and each public network address is specified in accordance with Internet Protocol (IP) addressing conventions.

18. The computer network environment of claim 15 wherein the computer network environment is an ATM network.

19. The computer network environment of claim 15 wherein the indicated public network address is the public network address of the address management proxy system, wherein data sent from the wired device indicates the unique identifier of the wireless device, and wherein the address management proxy system is structured to store and forward the data to the wireless device associated with the indicated unique identifier.

20. The computer network environment of claim 15 wherein the indicated public network address is received as a result of a call by the wired device to an address mapping function of the computer network environment.

21. The computer network environment of claim 20 wherein the address mapping function is a standard function of the computer network environment.

22. The computer network environment of claim 20 wherein the address mapping function is a GetHostByName function.

23. The computer network environment of claim 15 wherein the indicated public network address is received as a result of a call by the wired device to a function that returns a host system address and a port specification.

24. The computer network environment of claim 23 wherein the function is a customized API.

25. The computer network environment of claim 23 wherein the function supports an XML interface.

26. The computer network environment of claim 15, wherein the wireless device is further structured to send data to the wired device using the public network address of the wired device, thereby performing bi-directional communication.

27. The computer network environment of claim 15 wherein a virtual end-to-end connection is established between the wired device and the wireless device.

28. The computer network environment of claim 15 wherein a connectionless communications path is established between the wired device and the wireless device.

29. A method in a computer network environment for establishing a bi-directional communication channel virtual communication channel between a first device connected to the computer network environment using a public network address and a second device connected to a wireless communications network and having a private address, comprising:

receiving a request from the first device to communicate with the second device;

dynamically determining a public network address from a pool of public network addresses;

associating the determined public network address with the private address of the second device; and

returning an indication of the determined public network address to the first device so that the first device can thereafter send data to the second device using the determined public network address.

30. The method of claim 29 wherein the request indicates a unique identifier of the second device that is different from the private address of the second device, and the associating the determined public address with the private address of the second device is performed using the unique identifier.

31. The method of claim 29, further comprising:

receiving data from the first device directed to the determined public network address; and

transparently routing the received data to the second device using the private network address associated with the determined public network address.

32. The method of claim 31 wherein the transparent routing is performed by a masquerading system connected to the computer network environment by a public network address of the computer network environment.

33. The method of claim 29 wherein the first device is a wired device.

34. The method of claim 29 wherein the first device is a wireless device.

35. The method of claim 29 wherein the second device is a device capable of a wired connection.

36. The method of claim 29 wherein the second device is a wireless device.

37. The method of claim 29 wherein the determined public network address specifies a host system address and a port specification.

38. The method of claim 29 wherein the determined public network address specifies an Internet Protocol (IP) address.

39. The method of claim 29 wherein the method is performed by a modified DNS server.

40. The method of claim 29 wherein the received request is a standard API of the computer network environment.

41. The method of claim 40 wherein the API is a GetHostByName API.

42. The method of claim 29 wherein the received request is a modified API of the computer network environment that specifies a name of a host machine and an indication of a port.

43. The method of claim 29, further comprising:

associating the determined public network address with an expiration period; and

destroying the association between the determined public network address and the private address of the second device when the expiration period as expired.

44. The method of claim 43 wherein the expiration period is specified as Time to Live (TTL) data.

45. An address proxy management system connected to a computer network environment for establishing a virtual communication channel between a first device connected to the computer network environment using a public network address and a second device connected to a wireless communications network and having a private address comprising:

domain name service (DNS) that is structured to;

receive a request from the first device to communicate with the second device,

dynamically determine a public network address from a pool of public network addresses;

associate the determined public network address with the private address of the second device; and

return an indication of the determined public network address to the first device so that the first device can thereafter send data to the second device using the determined public network address.

46. The system of claim 45 wherein the DNS is a modified DNS that abides by at least one of UDP and TCP/IP standards.

47. The system of claim 45 wherein the computer network environment is the Internet.

48. The system of claim 45 wherein each public network address is specified in accordance with Internet Protocol (IP) addressing conventions.

49. The system of claim 45 wherein the DNS uses a database to associate the determined public network address with the private address of the second device.

50. The system of claim 45 wherein the DNS uses a database to dynamically determine a public network address from a pool of public network addresses.

51. The system of claim 45 wherein the request indicates a unique identifier of the second device that is different from the private address of the second device, and the DNS associates the determined public address with the private address of the second device using the unique identifier.

52. The system of claim 45, further comprising:

private address management router that is structured to receive data from the first device directed to the determined public network address, and transparently routes the received data to the second device using the private network address associated with the determined public network address.

53. The system of claim 52 wherein the private address management router is connected to the computer network environment by a public network address of the computer network environment, and transparently routes the received data to the public address of the second device by determining the private network address associated with the received data and causes the data to be forwarded over the wireless communications network to the second device at the determined private network address.

54. The system of claim 52 wherein the private address management router causes protocol conversion of the received data to be performed when applicable before transparently routing the received data.

55. The system of claim 45 wherein the first device is a wired device.

56. The system of claim 45 wherein the first device is a wireless device.

57. The system of claim 45 wherein the second device is a device capable of a wired connection.

58. The system of claim 45 wherein the second device is a wireless device.

59. The system of claim 45 wherein the determined public network address specifies a host system address and a port specification.

60. The system of claim 45 wherein the determined public network address specifies an Internet Protocol (IP) address.

61. The system of claim 45 wherein the received request is a standard API of the computer network environment.

62. The system of claim 61 wherein the API is a GetHostByName API.

63. The system of claim 45 wherein the received request is a new API that specifies a name of a host machine and an indication of a port.

64. The system of claim 45, wherein the DNS is further structured to:

associate the determined public network address with an expiration period; and

cause the association between the determined public network address and the private address of the second device to be destroyed when the expiration period as expired.

65. The system of claim 64 wherein the expiration period is specified as Time to Live (TTL) data.

66. An address proxy management system connected to a computer network environment for establishing a virtual communication channel between a first device connected to the computer network environment using a public network address and a second device connected to a wireless communications network and having a private address comprising:

means for receiving a request from the first device to communicate with the second device;

means for dynamically determining a public network address from a pool of public network addresses;

means for associating the determined public network address with the private address of the second device; and

means for returning an indication of the determined public network address to the first device so that the first device can thereafter send data to the second device using the determined public network address.

67. A computer-readable memory medium containing instructions for controlling a processor in a computer system to establish a bi-directional communication channel virtual communication channel between a first device connected to a computer network environment using a public network address and a second device connected to a wireless communications network and having a private address, by:

receiving a request from the first device to communicate with the second device;

dynamically determining a public network address from a pool of public network addresses;

associating the determined public network address with the private address of the second device; and

returning an indication of the determined public network address to the first device so that the first device can thereafter send data to the second device using the determined public network address.

68. The computer-readable memory medium of claim 67 wherein the request indicates a unique identifier of the second device that is different from the private address of the second device, and the associating the determined public address with the private address of the second device is performed using the unique identifier.

69. The computer-readable memory medium of claim 67, the instructions further controlling the computer processor by:

receiving data from the first device directed to the determined public network address; and

transparently routing the received data to the second device using the private network address associated with the determined public network address.

70. The computer-readable memory medium of claim 69 wherein the transparent routing is performed by a masquerading system connected to the computer network environment by a public network address of the computer network environment.

71. The computer-readable memory medium of claim 67 wherein the first device is a wired device.

72. The computer-readable memory medium of claim 67 wherein the first device is a wireless device.

73. The computer-readable memory medium of claim 67 wherein the second device is a device capable of a wired connection.

74. The computer-readable memory medium of claim 67 wherein the second device is a wireless device.

75. The computer-readable memory medium of claim 67 wherein the determined public network address specifies a host system address and a port specification.

76. The computer-readable memory medium of claim 67 wherein the determined public network address specifies an Internet Protocol (IP) address.

77. The computer-readable memory medium of claim 67 wherein the method is performed by a modified DNS server.

78. The computer-readable memory medium of claim 67 wherein the received request is a standard API of the computer network environment.

79. The computer-readable memory medium of claim 78 wherein the API is a GetHostByName API.

80. The computer-readable memory medium of claim 67 wherein the received request is a modified API of the computer network environment that specifies a name of a host machine and an indication of a port.

81. The computer-readable memory medium of claim 67, the instructions further controlling the computer processor by:

associating the determined public network address with an expiration period; and

destroying the association between the determined public network address and the private address of the second device when the expiration period as expired.

82. The computer-readable memory medium of claim 81 wherein the expiration period is specified as Time to Live (TTL) data.

83. A method in a computer network environment for communicating with a wireless device connected to an address management proxy system using a private network address, the wireless device having an associated unique identifier that is not the private network address, the address management proxy system connected to the computer network environment using a public network address of the network environment, comprising:

requesting from the address management proxy system a public network address that corresponds to the unique identifier associated with the wireless device;

receiving an indication of the public network address of the wireless device; and

sending data to the indicated public network address.

84. The method of claim 83 wherein the computer network environment is the Internet.

85. The method of claim 83 wherein the indicated public network address is specified in accordance with Internet Protocol (IP) addressing standards.

86. The method of claim 83 wherein the unique identifier is at least one of a person'"'"'s name and telephone number, an MSISDN number, and an ISMI number.

87. The method of claim 83 wherein the request is a standard API, such that communication with the wireless device is performed in the same manner as communication with a wired device connected to the computer network environment.

88. The method of claim 87 wherein the API is a GetHostByName function call.

89. The method of claim 83 wherein the indication of the public network address of the wireless device is a host machine address.

90. The method of claim 83 wherein the indication of the public network address of the wireless device is a host machine address and a port specification.

91. A computer-readable memory medium containing instructions for controlling a computer processor to communicate in a computer network environment with a wireless device connected to an address management proxy system using a private network address, the wireless device having an associated unique identifier that is not the private network address, the address management proxy system connected to the computer network environment using a public network address of the network environment, by:

requesting from the address management proxy system a public network address that corresponds to the unique identifier associated with the wireless device;

receiving an indication of the public network address of the wireless device; and

sending data to the indicated public network address.

92. The computer-readable memory medium of claim 91 wherein the computer network environment is the Internet.

93. The computer-readable memory medium of claim 91 wherein the indicated public network address is specified in accordance with Internet Protocol (IP) addressing standards.

94. The computer-readable memory medium of claim 91 wherein the unique identifier is at least one of a person'"'"'s name and telephone number, an MSISDN number, and an ISMI number.

95. The computer-readable memory medium of claim 91 wherein the request is a standard API, such that communication with the wireless device is performed in the same manner as communication with a wired device connected to the computer network environment.

96. The computer-readable memory medium of claim 95 wherein the API is a GetHostByName function call.

97. The computer-readable memory medium of claim 91 wherein the indication of the public network address of the wireless device is a host machine address.

98. The computer-readable memory medium of claim 91 wherein the indication of the public network address of the wireless device is a host machine address and a port specification.

99. A wired device that is connected to a computer network environment using a public network address of the computer network environment, the network environment connected to an address management proxy system using a public network address of the network environment, the address management proxy system connected to a wireless device using a private network address, the wireless device having an associated unique identifier that is not the private network address, comprising:

communications code module that is structured to;

request from the address management proxy system a public network address that corresponds to the unique identifier associated with the wireless device,

receive an indication of the public network address of the wireless device; and

send data to the indicated public network address.

100. The device of claim 99 wherein the computer network environment is the Internet.

101. The device of claim 99 wherein the indicated public network address is specified in accordance with Internet Protocol (IP) addressing standards.

102. The device of claim 99 wherein the unique identifier is at least one of a person'"'"'s name and telephone number, an MSISDN number, and an ISMI number.

103. The device of claim 99 wherein the request is a standard API, such that communication with the wireless device is performed in the same manner as communication with a wired device connected to the computer network environment.

104. The device of claim 103 wherein the API is a GetHostByName function call.

105. The device of claim 99 wherein the indication of the public network address of the wireless device is a host machine address.

106. The device of claim 99 wherein the indication of the public network address of the wireless device is a host machine address and a port specification.

107. The device of claim 99 wherein the communications code module implements at least one of UDP and TCP/IP communication with the wireless device.

108. The device of claim 99 wherein the communications code module implements UDP communication with the wireless device.