Location information control for session initiation protocol messages
First Claim
1. A method of operating a communication signaling processing system to handle Session Initiation Protocol (SIP) messaging, the method comprising:
- receiving a SIP INVITE message from a wireless communication device having a location information control value and a location value;
determining whether the location information control value indicates a first instruction value to correct the location value for the wireless communication device or a second instruction value to dummy the location value for the wireless communication device;
if the location information control value indicates the first instruction value to correct the location value for the wireless communication device, determining an abstracted-location value for the SIP INVITE message based on a current wireless access node servicing the wireless communication device, in the SIP INVITE message, replacing the location value with the abstracted-location value, and transferring the SIP INVITE message with the abstracted-location value to a SIP destination; and
if the location information control value indicates the second instruction value to dummy the location value for the wireless communication device, determining a dummy location value for the SIP INVITE message, wherein the dummy location value comprises a value unrelated to a location of the wireless communication device, in the SIP INVITE message, replacing the location value with the dummy location value, and transferring the SIP INVITE message with the dummy location value to a SIP destination.
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Accused Products
Abstract
In a wireless communication system, a wireless communication device transfers a SIP INVITE message having a first header with a first value indicating a location-handling requirement. The SIP INVITE message also has a second header with a location value. A communication signaling processing system processes the SIP INVITE message to determine a second value responsive to the first value indicating the location-handling requirement. The processing system replaces the location value in the second header of the SIP INVITE message with the second value. The processing system transfers the SIP INVITE message with the second value in the second header.
15 Citations
20 Claims
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1. A method of operating a communication signaling processing system to handle Session Initiation Protocol (SIP) messaging, the method comprising:
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receiving a SIP INVITE message from a wireless communication device having a location information control value and a location value; determining whether the location information control value indicates a first instruction value to correct the location value for the wireless communication device or a second instruction value to dummy the location value for the wireless communication device; if the location information control value indicates the first instruction value to correct the location value for the wireless communication device, determining an abstracted-location value for the SIP INVITE message based on a current wireless access node servicing the wireless communication device, in the SIP INVITE message, replacing the location value with the abstracted-location value, and transferring the SIP INVITE message with the abstracted-location value to a SIP destination; and if the location information control value indicates the second instruction value to dummy the location value for the wireless communication device, determining a dummy location value for the SIP INVITE message, wherein the dummy location value comprises a value unrelated to a location of the wireless communication device, in the SIP INVITE message, replacing the location value with the dummy location value, and transferring the SIP INVITE message with the dummy location value to a SIP destination. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A wireless communication system to handle Session Initiation Protocol (SIP) messaging comprising:
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a wireless communication device configured to generate and transfer a SIP INVITE message having a location information control value and a location value; a communication signaling processing system configured to receive the SIP INVITE message from a wireless communication device, determine whether the location information control value indicates a first instruction value to correct the location value for the wireless communication device or a second instruction value to dummy the location value for the wireless communication device; the communication signaling processing system configured to, if the location information control value indicates the first instruction value to correct the location value for the wireless communication device, determine an abstracted-location value for the SIP INVITE message based on a current wireless access node servicing the wireless communication device, in the SIP INVITE message, replace the location value with the abstracted-location value, and transfer the SIP INVITE message with the abstracted-location value to a SIP destination; and the communication signaling processing system configured to, if the location information control value indicates the second instruction value to dummy the location value for the wireless communication device, determine a dummy location value for the SIP INVITE message, wherein the dummy location value comprises a value unrelated to a location of the wireless communication device, in the SIP INVITE message, replace the location value with the dummy location value, and transfer the SIP INVITE message with the dummy location value to a SIP destination. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19, 20)
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Specification