Method of dormant data session reactivation
First Claim
1. A method for dormant data session reactivation, comprising:
- a packet control function in a radio access network receiving a first data packet having a source IP address, wherein the first data packet has a destination IP address coupled to reactivate a dormant mobile station coupled to the radio access network;
the packet control function receiving a plurality of subsequent data packets having the source IP address, wherein each of the plurality of subsequent data packets has a subsequent destination IP address and a corresponding time stamp;
for each of the plurality of subsequent data packets, the packet control function comparing the subsequent destination IP address and the corresponding time stamp; and
if at least a portion of the subsequent destination IP addresses are substantially sequential, and if an absolute value of a difference between each of the at least a portion of subsequent destination IP addresses that are sequential for a given difference in the corresponding time stamps is less than a threshold function, denying the first data packet.
4 Assignments
0 Petitions
Accused Products
Abstract
A method for dormant data session reactivation may include a packet control function (118) in a radio access network (104) receiving a first data packet (150) having a source IP address (152), where the first data packet has a destination IP address (152) addressed to reactivate a dormant mobile station (102) coupled to the radio access network. The packet control function may receive a plurality of subsequent data packets (160) having the source IP address, where each of the plurality of subsequent data packets has a subsequent destination IP address (162, 164, 166) and a corresponding time stamp (163, 165, 167). For each of the subsequent destination IP addresses that are substantially sequential, evaluating an absolute value of a slope (270) of the difference between the subsequent destination IP addresses that are substantially sequential over a difference in the corresponding time stamps. If the absolute value of the slope is less than a threshold function (280), denying the first data packet and preventing reactivation of the dormant mobile station by the first data packet.
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Citations
20 Claims
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1. A method for dormant data session reactivation, comprising:
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a packet control function in a radio access network receiving a first data packet having a source IP address, wherein the first data packet has a destination IP address coupled to reactivate a dormant mobile station coupled to the radio access network;
the packet control function receiving a plurality of subsequent data packets having the source IP address, wherein each of the plurality of subsequent data packets has a subsequent destination IP address and a corresponding time stamp;
for each of the plurality of subsequent data packets, the packet control function comparing the subsequent destination IP address and the corresponding time stamp; and
if at least a portion of the subsequent destination IP addresses are substantially sequential, and if an absolute value of a difference between each of the at least a portion of subsequent destination IP addresses that are sequential for a given difference in the corresponding time stamps is less than a threshold function, denying the first data packet. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A method for dormant data session reactivation, comprising:
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a packet control function in a radio access network receiving a first data packet having a source IP address, wherein the first data packet has a destination IP address coupled to reactivate a dormant mobile station coupled to the radio access network;
the packet control function receiving a plurality of subsequent data packets having the source IP address, wherein each of the plurality of subsequent data packets has a subsequent destination IP address and a corresponding time stamp;
for each of the subsequent destination IP addresses that are substantially sequential, evaluating an absolute value of a slope of the difference between the subsequent destination IP addresses that are substantially sequential over a difference in the corresponding time stamps; and
if the absolute value of the slope is less than a threshold function, denying the first data packet. - View Dependent Claims (9, 10, 11, 12, 13, 14)
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15. A method for dormant data session reactivation, comprising:
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a packet control function in a radio access network receiving a first data packet having a source IP address, wherein the first data packet has a destination IP address coupled to reactivate a dormant mobile station coupled to the radio access network;
the packet control function receiving a plurality of subsequent data packets having the source IP address, wherein each of the plurality of subsequent data packets has a subsequent destination IP address and a corresponding time stamp;
for each of the subsequent destination IP addresses that are substantially sequential, evaluating an absolute value of a slope of the difference between the subsequent destination IP addresses that are substantially sequential over a difference in the corresponding time stamps; and
if the absolute value of the slope is less than a threshold function, preventing the first data packet from reactivating the dormant mobile station. - View Dependent Claims (16, 17, 18, 19, 20)
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Specification