Claims
- 1. In a wireless access network having a Mobile Switching Center (MSC), a Base Station Controller (BSC), a Packet Control Function (PCF), and a Packet Data Service Node (PDSN) providing a packet-data session with a packet-data network, a method of optimizing the use of packet-resources by eliminating a hanging packet-data connection when a Mobile Station (MS) performs a power-down while the packet-data session is in a dormant state, said method comprising the steps of:
sending a message from the BSC to the MSC indicating that the MS has powered down; determining in the MSC that the packet-data session is dormant; sending an instruction from the MSC to the BSC to release network resources associated with the packet-data session; sending an instruction from the BSC to the PCF to tear down the associated resources; and releasing the packet-data connection by the PDSN in response to the tearing down of the resources by the PCF.
- 2. The method of optimizing the use of packet-resources of claim 1 wherein the step of determining in the MSC whether the packet-data session is dormant includes determining whether the MSC has previously received from the BSC, an Assignment Failure indicating the packet data session is going dormant.
- 3. The method of optimizing the use of packet-resources of claim 1 wherein the step of sending an instruction from the MSC to the BSC to release network resources includes sending the instruction in a class-0 connectionless transaction.
- 4. In a wireless access network having a Mobile Switching Center (MSC), a Base Station Controller (BSC), a Packet Control Function (PCF), and a Packet Data Service Node (PDSN) providing a packet-data session with a packet-data network, a method of optimizing the use of packet-resources by eliminating a hanging packet-data connection when a Mobile Station (MS) performs a power-down while the packet-data session is in a dormant state, said method comprising the steps of:
receiving in the BSC, a power-down registration from the MS; sending from the BSC, an update message to the PCF that includes an indication that the MS has powered down; sending an indication from the PCF to the PDSN indicating that the lifetime of the packet-data connection is zero (0); and releasing the packet-data connection by the PDSN in response to the indication from the PCF.
- 5. The method of optimizing the use of packet-resources of claim 4 further comprising sending a location updating message from the BSC to the MSC to initiate a release of radio resources, said location updating message being sent simultaneously with the update message sent from the BSC to the PCF.
- 6. In a wireless access network having a Mobile Switching Center (MSC), a Base Station Controller (BSC), a Packet Control Function (PCF), and a Packet Data Service Node (PDSN) providing a packet-data session with a packet-data network, a method of optimizing the use of packet-resources by eliminating a hanging packet-data connection when an authentication failure is received for a Mobile Station (MS) after the packet-data connection is established between the MS and the PDSN, said method comprising the steps of:
sending an indication of the authentication failure from the MSC to the BSC; sending from the BSC, an instruction to the PCF to release its connection with the BSC due to authentication failure; clearing by the PCF, its connection with the BSC, and initiating closure of its connection with the PDSN in response to the instruction from the BSC; and releasing the packet-data connection by the PDSN in response to the closure of the connection from the PCF.
- 7. In a wireless access network having a Mobile Switching Center (MSC), a Base Station Controller (BSC), a Packet Control Function (PCF), and a Packet Data Service Node (PDSN) providing a packet-data session with a packet-data network, a method of optimizing the use of packet-resources by eliminating a hanging packet-data connection when an authentication failure is received for a Mobile Station (MS) after the MS performs an intra-BSC/intra-PCF/inter-PDSN dormant handoff, said method comprising the steps of:
sending an indication of the authentication failure from the MSC to the BSC; sending from the BSC, an update message to the PCF that includes an identity of the MS and an indication that authentication failed for a dormant packet-data session; sending an indication from the PCF to the PDSN indicating that the lifetime of the packet-data connection is zero (0); and releasing the packet-data connection by the PDSN in response to the indication from the PCF.
- 8. In a wireless access network having a Mobile Switching Center (MSC), a Base Station Controller (BSC), a Packet Control Function (PCF), and a Packet Data Service Node (PDSN) providing a packet-data session with a packet-data network, a method of optimizing the use of packet-resources by eliminating a hanging packet-data connection when an authentication failure is received for a Mobile Station (MS) after the MS performs an inter-PDSN dormant handoff, said method comprising the steps of:
reactivating the packet-data session; sending an indication of the authentication failure from the MSC to the BSC; sending from the BSC, an instruction to the PCF to release its connection with the BSC due to authentication failure; clearing by the PCF, its connection with the BSC, and initiating closure of its connection with the PDSN in response to the instruction from the BSC; and releasing the packet-data connection by the PDSN in response to the closure of the connection from the PCF.
- 9. The method of optimizing the use of packet-resources of claim 8 wherein the step of sending an indication of the authentication failure from the MSC to the BSC includes sending a Clear command to the BSC using a Signaling Connection Control Part (SCCP) connection, the Clear command having a cause value of “authentication failure”.
- 10. A Mobile Switching Center (MSC) in a wireless access network having a Base Station Controller (BSC), a Packet Control Function (PCF), and a Packet Data Service Node (PDSN) providing a Mobile Station (MS) with a packet-data session with a packet-data network, said MSC comprising:
a first signaling means for receiving a message from the BSC indicating that the MS has powered down; means for determining in the MSC that the packet-data session is dormant; and a second signaling means for sending an instruction to the BSC to release network resources associated with the packet-data session.
- 11. The MSC of claim 10 wherein the means for determining that the packet-data session is dormant includes means for determining whether the MSC has previously received from the BSC, a Location Update Request associated with the packet-data session.
- 12. The MSC of claim 10 wherein the second signaling means sends the instruction to the BSC in a class-0 connectionless transaction.
- 13. A Base Station Controller (BSC) in a wireless access network having a Mobile Switching Center (MSC), a Packet Control Function (PCF), and a Packet Data Service Node (PDSN) providing a Mobile Station (MS) with a packet-data session with a packet-data network, said BSC comprising:
a first signaling means for receiving a power-down registration from the MS when the packet-data session is dormant; and a second signaling means for sending from the BSC, an update message to the PCF that instructs the PCF to release resources associated with the packet-data session due to the MS powering down.
- 14. The BSC of claim 13 further comprising a third signaling means for sending a location updating message from the BSC to the MSC to initiate a release of radio resources, said location updating message being sent simultaneously with the update message sent from the BSC to the PCF.
- 15. A Base Station Controller (BSC) in a wireless access network having a Mobile Switching Center (MSC), a Packet Control Function (PCF), and a Packet Data Service Node (PDSN) providing a Mobile Station (MS) with a packet-data session with a packet-data network, said BSC comprising:
a first signaling means for receiving a message from the MSC indicating that authentication failed for the MS when the packet-data session is dormant; and a second signaling means for sending from the BSC, an instruction to the PCF to release its connection with the BSC due to authentication failure.
- 16. A system for optimizing the use of packet-resources in a wireless access network by eliminating a hanging packet-data connection at a Packet Data Service Node (PDSN) when a Mobile Station (MS) performs a power-down while a packet-data session is in a dormant state, said system comprising:
a Mobile Switching Center (MSC), said MSC comprising:
a first signaling means for receiving a message from the BSC indicating that the MS has powered down; and a second signaling means for sending an instruction to the BSC to release network resources associated with the packet-data session; a Base Station Controller (BSC) that receives the instruction from the MSC and sends a release instruction to a Packet Control Function (PCF) to release packet-data resources; a Packet Control Function (PCF) that releases its connection to the BSC and initiates closure of its connection to the PDSN in response to the release instruction received from the BSC; and a Packet Data Service Node (PDSN) that releases the packet-data connection in response to the PCF initiating closure of its connection to the PDSN.
- 17. A system for optimizing the use of packet-resources in a wireless access network by eliminating a hanging packet-data connection at a Packet Data Service Node (PDSN) when a Mobile Station (MS) performs a power-down while a packet-data session is in a dormant state, said system comprising:
a Mobile Switching Center (MSC) that control radio resources in the wireless access network; a Base Station Controller (BSC), said BSC comprising:
a first signaling means for receiving a power-down registration from the MS when the packet-data session is dormant; and a second signaling means for sending from the BSC, an update message to a Packet Control Function (PCF) that instructs the PCF to release resources associated with the packet-data session due to the MS powering down; a PCF that releases its connection to the BSC and initiates closure of its connection to the PDSN in response to the release instruction received from the BSC; and a PDSN that releases the packet-data connection in response to the PCF initiating closure of its connection to the PDSN.
- 18. The system for optimizing the use of packet-resources of claim 17 wherein the BSC also includes a third signaling means for sending a location updating message from the BSC to the MSC to initiate a release of radio resources, said location updating message being sent simultaneously with the update message sent from the BSC to the PCF.
- 19. A system for optimizing the use of packet-resources in a wireless access network by eliminating a hanging packet-data connection at a Packet Data Service Node (PDSN) when an authentication failure is received for a Mobile Station (MS) that is involved in a dormant packet-data session, said system comprising:
a Mobile Switching Center (MSC) comprising:
an authentication signaling means for receiving from an Authentication Center, an indication of the authentication failure for the MS; and a Base Station Controller (BSC) signaling means for sending a message to a BSC indicating the authentication failure; a Base Station Controller (BSC), said BSC comprising:
an MSC signaling means for receiving a message from the MSC indicating the authentication failure for the MS; and a Packet Control Function (PCF) signaling means for sending from the BSC, an instruction to a PCF to release its connection with the BSC due to authentication failure; a PCF that releases its connection to the BSC and initiates closure of its connection to the PDSN in response to the release instruction received from the BSC; and a PDSN that releases the packet-data connection in response to the PCF initiating closure of its connection to the PDSN.
PRIORITY STATEMENT UNDER 35 U.S.C. § 119(e) & 37 C.F.R. § 1.78
[0001] This nonprovisional application claims priority based upon the prior U.S. provisional patent application entitled, “Optimized Resource Management at Dormant Handoff With Packet Resource Management at Power Down of a Dormant Mobile Station”, application Ser. No. 60/195,378, filed Apr. 7, 2000, in the names of Lila Madour and Karim Shafik.
Provisional Applications (1)
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Number |
Date |
Country |
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60195378 |
Apr 2000 |
US |