Implementing and coordinating configuration of protocol processes

• US 20060036744A1
• Filed: 10/05/2005
• Published: 02/16/2006
• Est. Priority Date: 06/29/2001
• Status: Active Grant

• Current Assignee: Qualcomm, Inc.
• Original Assignee: Qualcomm, Inc.
• Inventors: Andrus, Don, Neft, Nicholas
• Granted Patent: US 7,216,174 B2
• Time in Patent Office: Days
• US Class Current: 709/227
• CPC Class Codes: H04L 67/14 Session management for real-time applications in data packet communications networks H04L65/1066
• CPC Class Codes: H04L 69/24 Negotiation of communication capabilities
• CPC Class Codes: H04L 69/32 Architecture of open systems interconnection [OSI] 7-layer type protocol stacks, e.g. the interfaces between the data link level and the physical level
• CPC Class Codes: H04L 9/40 Network security protocols
• CPC Class Codes: H04W 28/18 Negotiating wireless communication parameters
• CPC Class Codes: H04W 80/00 Wireless network protocols or protocol adaptations to wireless operation

Abstract

The present invention employs a method for coordinating communication of protocol processes within Access Terminals in order for the Access Terminals to successfully and efficiently communicate with the protocol processes within an Access Network. The method of the present invention can be used in conjunction with the current IS-856 standard. After receiving an indication of required configuration from one or more of the answering protocol processes, the SCP issues a configuration command to all of the answering protocol processes in the AT. If the answering protocol process determines that it needs to reconfigure any of its parameters, it accepts the configuration command and notifies the SCP that it has accepted the configuration command. Alternatively, if the answering protocol process determines that it does not need to reconfigure any of its parameters, it rejects the configuration command and notifies the SCP that it has rejected its configuration command. Communication between the Access Terminal and the Access Network then resumes.

Claims

1. A method for configuring a plurality of protocol processes within an access terminal to allow the protocol processes to act in a cohesive manner to correctly emulate an expected communication interface with a corresponding group of network protocols processes in a network protocol stack, comprising the steps of:

transmitting a command to a protocol process within the access terminal to thereby direct the access terminal to change from an open state to an access terminal initiated state; and

exiting said access terminal initiated state upon receiving notice from all protocols processes within the access terminal.

2. An access terminal, in which configuration and coordination of a plurality of protocol processes occurs to allow said protocol to act in a cohesive manner to correctly emulate an expected communication interface with a corresponding group of protocol in a network protocol stack, comprising:

means for causing the access terminal to detect a need to change an existing condition in the access terminal;

means for addressing said need by sending a configuration command from a session configuration protocol process located within the access terminal, said configuration command being sent to an answering protocol process comprising an attribute for controlling said change, said answering protocol process being located within the access terminal; and

means for determining if said answering protocol process accepts or rejects said change.

3. The access terminal of claim 2, further comprising:

means for sending a failed protocol negotiation indication from said answering protocol process to said session configuration protocol process of the access terminal.

4. The access terminal of claim 3, further comprising:

means for sending a configuration complete indication from said answering protocol process to said session configuration protocol process of the access terminal.

5. A method performed within an access terminal communicating in a communication network, the method comprising:

reading at least one session configuration variable from non-volatile memory if a session configuration protocol process determines configuration data in the non-volatile memory should be used based on a status of a current session;

assigning a default value to the at least one session configuration variable if the session configuration protocol process determines no configuration variables are stored in non-volatile memory; and

sending a configuration command from the session configuration protocol process to an answering protocol process, the configuration command comprising an attribute for controlling a need to change an existing status of the answering protocol process.

6. A method in accordance with claim 5, further comprising:

transmitting an acceptance from the answering protocol process to the session configuration protocol process if the answering protocol process accepts the configuration command; and

terminating further processing if the answering protocol process rejects the command.

7. A method in accordance with claim 6, further comprising:

sending a configuration complete indication from the answering protocol process to the session configuration protocol if the answering protocol process accepts the configuration command.

8. A method in accordance with claim 7, further comprising:

sending a message to the network in response to receiving a configuration complete indication from all protocol processes in the access terminal that accepted the configuration command.

9. A method in accordance with claim 7, wherein the transmitting the acceptance comprises:

sending a value of true from the answering protocol process to the session configuration protocol process in response to the acceptance of the configuration command.

10. A method in accordance with claim 7, wherein terminating comprises:

sending a value of false from the answering protocol process to the session configuration protocol process in response to rejection of the configuration command.

11. A method in accordance with claim 7, further comprising:

sending a failed protocol negotiation indication from the answering protocol process to the session configuration protocol process upon expiration of a specified time period if the answering protocol process accepted the configuration command.

12. A method in accordance with claim 7, further comprising:

if the answering protocol process accepted the configuration command, sending a failed protocol negotiation indication from the answering protocol process to a session management protocol process in response to a determination that an attribute identified in a response message does not match an attribute identified in a request message.

13. A method in accordance with claim 7, further comprising:

if the answering protocol process accepted the configuration command, sending identification data corresponding to an offending attribute from the answering protocol process to a session management protocol process.

14. A method in accordance with claim 7, further comprising:

sending a configuration request message from the session configuration protocol process to the network before sending the configuration command.

15. A method in accordance with claim 7, further comprising:

if said answering protocol process accepted the configuration command, sending a failed protocol negotiation indication after a specified number of session configuration attempts by the answering protocol process.

16. A method in accordance with claim 7, further comprising:

sending a configuration request message from the answering protocol process in the access terminal to a corresponding peer in the network; and

receiving a configuration response message at the answering protocol process in response to the configuration request message transmitted from the answering protocol process.

17. A method in accordance with claim 16, further comprising:

limiting a time period between the receiving and the sending.

18. A method in accordance with claim 7, further comprising:

exiting an access terminal initiation stage.

19. A method in accordance with claim 7, further comprising the step of:

repeating the sending and receiving.

20. An apparatus configured for use in an access terminal for communicating within a wireless communication network, the apparatus comprising:

a session configuration protocol (SCP) process for communicating with a peer network SCP process in accordance with a session configuration protocol governing a maintenance of protocol parameters; and

a plurality of answering protocol processes, each answering protocol process configured to send a reconfiguration request indication to the SCP process indicating a requirement for reconfiguration of the answering protocol process, the SCP process configured to send a configuration command to the plurality of answering protocol processes in response to receiving at least one reconfiguration request indication.

21. An apparatus in accordance with claim 20, wherein each of the plurality of answering protocol processes is further configured to send an acceptance indication if configuration is required and send a rejection indication if configuration is not required.

22. An apparatus in accordance with claim 21, wherein each of the plurality of answering protocol processes is further configured to send a configuration request message to a peer network protocol process if configuration is required.

23. An apparatus in accordance with claim 22, wherein each of the plurality of answering protocol processes is further configured to receive, from the peer network protocol process, a configuration response message comprising an identification of a configured variable of the answering protocol process.

24. An apparatus in accordance with claim 20, wherein the SCP process is further configured to transmit a configuration request message to the peer network SCP process if configuration of the SCP process is required.

25. An apparatus in accordance with claim 24, wherein the SCP process is further configured to receive a configuration response message from the peer network SCP process.

26. An apparatus in accordance with claim 25, wherein the SCP process is configured to transmit the configuration command to the plurality of answering protocol processes after determining that configuration of the SCP process is not required.

27. An apparatus in accordance with claim 26, wherein the SCP process is further configured to send a configuration complete message to the peer network SCP process if the SCP process receives a configuration complete indication form the answering protocol process.

28. An apparatus in accordance with claim 27, wherein the SCP process is further configured to receive a configuration complete response message from the peer network SCP process.

29. An apparatus in accordance with claim 26, wherein the SCP process is further configured to close a current configuration session if a failed protocol negotiation indication is received from any of the plurality of answering protocol processes.