System, method, and computer-readable medium for mobile terminated call processing by a femtocell system

• US 8,059,585 B2
• Filed: 10/15/2008
• Issued: 11/15/2011
• Est. Priority Date: 11/15/2007
• Status: Active Grant

• Current Assignee: Red Hat, Inc. (International Business Machines Corporation)
• Original Assignee: AirWalk Communications, Inc. (Hon Hai Precision Industry Co., Ltd.)
• Inventors: Osborn, Christopher Martin Edward
• Primary Examiner(s): Ly; Anh-Vu
• Application Number:
  US12/252,234
• Publication Number:
  US 20090129348A1
• Time in Patent Office: 1,126 Days
• Field of Search: None
• US Class Current: 370/328
• CPC Class Codes: H04L 2101/385 Uniform resource identifier for session initiation protocol [SIP URI]
• CPC Class Codes: H04L 5/0055 Physical resource allocation for ACK/NACK for physical mapping arrangements in ARQ protocols H04L1/1861
• CPC Class Codes: H04L 63/08 for authentication of entities cryptographic mechanisms or cryptographic arrangements for entity authentication H04L9/32
• CPC Class Codes: H04L 63/12 Applying verification of the received information cryptographic mechanisms or cryptographic arrangements for data integrity or data verification H04L9/32
• CPC Class Codes: H04L 65/1016 IP multimedia subsystem [IMS]
• CPC Class Codes: H04L 65/103 in the network
• CPC Class Codes: H04L 65/104 in the network
• CPC Class Codes: H04L 65/1069 Session establishment or de-establishment
• CPC Class Codes: H04L 65/1073 Registration or de-registration
• CPC Class Codes: H04L 65/1104 Session initiation protocol [SIP]
• CPC Class Codes: H04M 3/42314 in private branch exchanges
• CPC Class Codes: H04M 3/44 Additional connecting arrangements for providing access to frequently-wanted subscribers, e.g. abbreviated dialling at the subscriber's set H04M1/27; automatic redialling H04M3/424
• CPC Class Codes: H04M 7/009 in systems involving PBX or KTS networks
• CPC Class Codes: H04W 12/06 Authentication
• CPC Class Codes: H04W 24/10 Scheduling measurement reports ; Arrangements for measurement reports
• CPC Class Codes: H04W 36/00 Hand-off or reselection arrangements
• CPC Class Codes: H04W 36/0058 Transmission of hand-off measurement information, e.g. measurement reports
• CPC Class Codes: H04W 36/0083 Determination of parameters used for hand-off, e.g. generation or modification of neighbour cell lists
• CPC Class Codes: H04W 36/0085 Hand-off measurements
• CPC Class Codes: H04W 36/0088 Scheduling hand-off measurements
• CPC Class Codes: H04W 36/08 : Reselecting an access point
• CPC Class Codes: H04W 36/30 : by measured or perceived connection quality data
• CPC Class Codes: H04W 4/14 : Short messaging services, e.g. short message services [SMS] or unstructured supplementary service data [USSD]
• CPC Class Codes: H04W 40/02 : Communication route or path selection, e.g. power-based or shortest path routing
• CPC Class Codes: H04W 40/20 : based on geographic position or location
• CPC Class Codes: H04W 72/20 : Control channels or signalling for resource management
• CPC Class Codes: H04W 72/27 : between access points
• CPC Class Codes: H04W 76/10 : Connection setup
• CPC Class Codes: H04W 76/12 : Setup of transport tunnels
• CPC Class Codes: H04W 84/045 : using private Base Stations, e.g. femto Base Stations, home Node B
• CPC Class Codes: H04W 88/085 : Access point devices with remote components
• CPC Class Codes: Y02D 30/70 : in wireless communication networks

Abstract

A system, method, and computer readable medium for processing a call setup in a network system are provided. A femtocell system receives a call origination for a call to be terminated with a user equipment serviced by the femtocell system from a core network, transmits a page message to the user equipment, performs a service connection with the user equipment, creates a connection for the core network, and completes the call setup with the user equipment.

Claims

1. A method of processing a call setup in a network system, comprising:

receiving, by a femtocell system, a call origination for a call to be terminated with a user equipment serviced by the femtocell system from a core network;

transmitting, by the femtocell system, a page message to the user equipment;

transmitting, by a Session Initiation Protocol to Internet Operating System adapter of the femtocell system, a create connection message to a transcoder of the femtocell system

performing, by the femtocell system, a service connection with the user equipment;

creating, by the femtocell system, a connection for the core network; and

completing the call setup with the user equipment.

2. The method of claim 1, wherein creating a connection for the core network comprises creating a connection for an Internet Protocol Multimedia Subsystem core network.

3. The method of claim 1, further comprising opening at least one real time transport protocol port at the transcoder in response to receiving the create connection message.

4. The method of claim 3, wherein opening at least one real time transport protocol port further comprises specifying a service mode as receive only.

5. The method of claim 1, further comprising:

transmitting, by a base transceiver station of the femtocell system, a channel assignment to the user equipment; and

receiving, by the base transceiver station, a service connection completion message from the user equipment.

6. The method of claim 5, further comprising transmitting, by the femtocell system, a ringing indication to the core network in response to receipt of the service connect completion message.

7. The method of claim 6, further comprising modifying a connection service mode of a transcoder of the femtocell system to a send and receive mode in response to receipt of an acknowledgement to the ringing indication received from the core network.

8. A non-transitory computer-readable medium having computer-executable instructions for execution by a processing system, the computer-executable instructions for processing a call setup in a network system, the computer-readable medium comprising instructions that:

receive, by a femtocell system, a call origination for a call to be terminated with a user equipment serviced by the femtocell system from a core network;

transmit, by the femtocell system, a page message to the user equipment;

transmit, by a Session Initiation Protocol to Internet Operating System adapter of the femtocell system, a create connection message to a transcoder of the femtocell system;

perform, by the femtocell system, a service connection with the user equipment;

create, by the femtocell system, a connection for the core network; and

complete the call setup with the user equipment.

9. The computer-readable medium of claim 8, wherein creating a connection for the core network comprises creating a connection for an Internet Protocol Multimedia Subsystem core network.

10. The computer-readable medium of claim 8, further comprising instructions that open at least one real time transport protocol port at the transcoder in response to receiving the create connection message.

11. The computer-readable medium of claim 10, wherein the instructions that open at least one real time transport protocol port further comprise instructions that specify a service mode as receive only.

12. The computer-readable medium of claim 8, further comprising instructions that:

transmit, by a base transceiver station of the femtocell system, a channel assignment to the user equipment; and

receive, by the base transceiver station, a service connection completion message from the user equipment.

13. The computer-readable medium of claim 12, further comprising instructions that transmit a ringing indication to the core network in response to receipt of the service connect completion message.

14. The computer-readable medium of claim 13, further comprising instructions that modify a connection service mode of a transcoder of the femtocell system to a send and receive mode in response to receipt of an acknowledgement to the ringing indication received from the core network.

15. A system configured for call processing in a network system, comprising:

a packet-switched network;

an Internet Protocol Multimedia subsystem communicatively coupled with the packet-switched network; and

a femtocell system communicatively coupled with the packet-switched network, wherein the femtocell system includes a base transceiver station, a transcoder, and a Session Initiation Protocol to Internet Operating System adapter, wherein the femtocell system receives a call origination for a call to be terminated with a user equipment serviced by the femtocell system from the Internet Protocol Multimedia subsystem, transmits a page message to the user equipment, wherein the Session Initiation Protocol to Internet Operating System adapter transmits a create connection message to the transcoder and the transcoder opens at least one real time transport protocol port in response thereto, and wherein the femtocell system performs a service connection with the user equipment, creates a connection for the Internet Protocol Multimedia subsystem, and completes the call setup with the user equipment.

16. The system of claim 15, wherein the transcoder specifies a service mode as receive only when the at least one real time transport protocol port is opened.

17. The system of claim 15, wherein the base transceiver station transmits a channel assignment to the user equipment and receives a service connection completion message from the user equipment.

18. The system of claim 17, wherein the femtocell system transmits a ringing indication to the Internet Protocol Multimedia subsystem in response to receiving the service connect completion message.

19. The system of claim 18, wherein the transcoder modifies a connection service mode to a send and receive mode in response to receipt of an acknowledgement to the ringing indication received from the Internet Protocol Multimedia subsystem.