Optimized packet-resource management
First Claim
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.
1 Assignment
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Accused Products
Abstract
A system and method for optimizing the use of packet-resources by releasing a hanging packet-data connection when a Mobile Station (MS) performs a power-down while involved in a dormant packet-data session. A Base Station Controller (BSC) sends a message to a Mobile Switching Center (MSC) indicating that the MS has powered down. The MSC determines that the packet-data session is dormant, and sends an instruction to the BSC in a class-0 connectionless transaction to release network resources associated with the packet-data session. The BSC then sends an instruction to a Packet Control Function (PCF) to tear down the associated resources, and the packet-data connection is released by a Packet Data Service Node (PDSN) in response to the tearing down of the resources by the PCF.
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Citations
13 Claims
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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:
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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. - View Dependent Claims (2, 3)
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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:
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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. - View Dependent Claims (5)
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6. 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:
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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. - View Dependent Claims (7, 8)
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9. 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:
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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. - View Dependent Claims (10)
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11. 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:
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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.
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12. 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:
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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. - View Dependent Claims (13)
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Specification