Method and apparatus for routing data in a communication system

• US 6,377,808 B1
• Filed: 04/27/2000
• Issued: 04/23/2002
• Est. Priority Date: 04/27/2000
• Status: Expired due to Term

• Current Assignee: Google Technology Holdings LLC (Alphabet Inc.)
• Original Assignee: Motorola, Inc. (Motorola Solutions, Inc.)
• Inventors: Wang, Alex, Russell, Todd M., Melgarejo, Orestes, Chan, Alan Wai, Korneluk, Jose E.
• Primary Examiner(s): Chang, Vivian
• Assistant Examiner(s): RAMOS FELICIANO, ELISEO
• Application Number:
  US09/559,451
• Time in Patent Office: 726 Days
• Field of Search: 370/409, 370/404, 370/401, 370/402, 370/403, 370/405, 370/406, 370/407, 370/408, 370/349, 370/392, 370/389, 455/414, 455/415, 455/556, 455/557, 455/550, 455/445, 455/466, 709/238, 709/250, 375/222
• US Class Current: 455/445
• CPC Class Codes: H04M 1/72445 for supporting Internet browser applications
• CPC Class Codes: H04W 88/02 Terminal devices

Abstract

A controller in a communication device receives a request, from a process operating in the communication device, to subscribe to a data routing service that is managed by the controller. In response to the request, the controller assigns a destination identifier to the process and adds the process and the assigned destination identifier to a routing table that is stored in a memory associated with the controller. Data subsequently received from a data source is routed to the process or to one of multiple communication ports by the controller by reference to the destination identifier, or the absence of a destination identifier, stored in the routing table.

Claims

1. A method for routing data in a communication device, the communication device comprises a plurality of data ports, wherein the communication device transmits and receives data via a data port of the plurality of data ports, comprising steps of:

receiving a request from a process to subscribe to a data routing service;

assigning a destination identifier to the process in response to the request; and

adding the process and the assigned destination identifier to a routing table, wherein data received from a data source is routed to the process by reference to the destination identifier included in the routing table;

receiving data from a data source, wherein the data comprises incoming information and a destination identifier;

determining a destination identifier based on the received data;

searching the routing table for the determined destination identifier and a corresponding process; and

when the determined destination identifier is not found in the routing table, conveying the incoming information to a data port of the plurality of data ports.

2. The method of claim 1, wherein the destination identifier comprises a port number.

3. The method of claim 1, wherein the destination identifier comprises a socket number.

4. The method of claim 1, wherein the destination identifier comprises an Internet Protocol (IP) address.

5. The method of claim 1, wherein the destination identifier is based on a User Datagram Protocol (UDP) protocol.

6. The method of claim 1, further comprising steps of:

receiving data from a data source, wherein the data includes a destination identifier;

determining a destination identifier based on the received data;

searching the routing table for the determined destination identifier and a corresponding process;

when the determined destination identifier is found in the routing table, conveying the data to the corresponding process by reference to the destination identifier.

7. The method of claim 1, further comprising steps of:

receiving a request from the process to unsubscribe from the data routing service; and

deleting the process and the assigned destination identifier from the routing table in response to the request to unsubscribe.

8. An apparatus for routing data in a communication device comprising:

a controller comprising a data routing task that receives a request from a process to subscribe to a data routing service, assigns a destination identifier to the process, and adds the process and the assigned destination identifier to a routing table, wherein data received from a data source is routed to the process by reference to the destination identifier included in the routing table, the controller further receives data from a data source, which data includes incoming information, user information, and a destination identifier, the controller determines a destination identifier based on the received data, searches the routing table for the determined destination identifier and a corresponding process, and, when the determined destination identifier is found in the routing table, conveys user information to the corresponding process by reference to the destination identifier, the controller further conveys the user information to a data port when the determined destination identifier is not found in the routing table; and

a memory coupled to the controller that stores the routing table.

9. The apparatus of claim 8, wherein the destination identifier is based on a User Datagram Protocol (UDP) protocol.

10. The apparatus of claim 8, wherein the data received from a data source further includes a source identifier, wherein when the determined destination identifier is not found in the routing table the controller further determines a port where the data was received based on the source identifier to produce a receiving port, conveys the incoming information to an antenna port when the determined receiving port is a voice port or data port, and conveys the incoming information to the voice port of the data port when the determined receiving port is the antenna port.

11. The apparatus of claim 8, wherein the controller further receives a request from the process to unsubscribe from the data routing service and deletes the process and the assigned destination identifier from the routing table in response to the request to unsubscribe.

12. A communication device comprising:

a plurality of ports for the transmission and reception of information exchange by the communication device;

a controller in communication with each port of the plurality of data ports, wherein the controller comprises a data routing task that receives a request from a process to subscribe to a data routing service, assigns a destination identifier to the process, adds the process and the assigned destination identifier to a routing table, and routes data received from a data source via a port of the plurality of ports to the process by reference to the destination identifier included in the routing table, the controller further receives data from a data source via a port of the plurality of ports, which data comprises incoming information and a destination identifier, determines a destination identifier based on the received data, searches the routing table for the determined destination identifier and a corresponding process, and, when the determined destination identifier is found in the routing table, conveys the user information to the corresponding process by reference to the destination identifier, the controller further receives the data from the data source via a first port of the plurality of ports, and wherein the controller further conveys the user information to a second port of the plurality of ports when the determined destination identifier is not found in the routing table; and

a memory coupled to the controller that stores the routing table.

13. The communication device of claim 12, wherein the controller receives the data from the data source via a receiving port of the plurality of data ports, wherein the data further comprises a source identifier, wherein when the determined destination identifier is not found in the routing table the controller further determines a data source for the received data based on the source identifier, conveys the incoming information to an antenna port when the receiving port is determined to be a voice port or a data port, and conveys the incoming information to the voice port or the data port when the receiving port is determined to be the antenna port.

14. The communication device of claim 12, wherein the controller further receives a request from the process to unsubscribe from the data routing service and deletes the process and the assigned destination identifier from the routing table in response to the request to unsubscribe.

15. A method for routing data in a communication device, the communication device having a plurality of ports, the plurality of ports includes a voice port or a data port and further includes an antenna port, the method comprising steps of:

receiving a request from a process to subscribe to a data routing service;

assigning a destination identifier to the process in response to the request; and

adding the process and the assigned destination identifier to a routing table, wherein data received from a data source is routed to the process by reference to the destination identifier included in the routing table;

receiving data from a data source, wherein the data includes a destination identifier and a source identifier;

determining a destination identifier based on the received data;

searching the routing table for the determined destination identifier and a corresponding process;

when the determined destination identifier is not found in the routing table, determining a port where the data was received based on the source identifier;

when the determined port is the voice port or the data port, conveying the user information to the antenna port; and

when the determined port is the antenna port, conveying the data to the voice port or the data port.

16. The method of claim 15, wherein the destination identifier comprises a port number.

17. The method of claim 15, wherein the destination identifier comprises a socket number.

18. The method of claim 15, wherein the destination identifier comprises an Internet Protocol (IP) address.

19. The method of claim 15, wherein the destination identifier is based on a User Datagram Protocol (UDP) protocol.

20. The method of claim 15, further comprising steps of:

receiving data from a data source, wherein the data includes a destination identifier;

determining a destination identifier based on the received data;

searching the routing table for the determined destination identifier and a of corresponding process;

when the determined destination identifier is found in the routing table, conveying the data to the corresponding process by reference to the destination identifier.

21. The method of claim 15, further comprising steps of:

receiving a request from the process to unsubscribe from the data routing service; and

deleting the process and the assigned destination identifier from the routing table in response to the request to unsubscribe.