Flow control of short message service messages in a cellular telephone network
First Claim
1. A method for controlling the flow of short message service messages over an air interface comprising the steps of:
- measuring communications load on a control channel of the air interface;
determining a maximum permitted length for a short message service message based on the measured control channel load;
responsive to a request for short message service transmission, identifying a length for the requested short message service message transmission;
comparing the identified length to the determined maximum permitted length; and
refusing the requested short message service message transmission if the identified length exceeds the determined maximum permitted length.
4 Assignments
0 Petitions
Accused Products
Abstract
Measurements of the load being carried on the control channel of a cellular telephone network air interface are made and then processed to identify a maximum permitted short message service message length for control channel transmission. Short message service messages with lengths less than the permitted maximum are authorized for transmission over the control channel. Any short message service message having a length exceeding the determined maximum length, however, is refused authorization for control channel transmission. The refused messages are either saved for control channel transmission at a later time when the measured loading permits or transmitted over the traffic channel portion of the air interface.
264 Citations
21 Claims
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1. A method for controlling the flow of short message service messages over an air interface comprising the steps of:
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measuring communications load on a control channel of the air interface; determining a maximum permitted length for a short message service message based on the measured control channel load; responsive to a request for short message service transmission, identifying a length for the requested short message service message transmission; comparing the identified length to the determined maximum permitted length; and refusing the requested short message service message transmission if the identified length exceeds the determined maximum permitted length. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A system for controlling the flow of short message service messages over an air interface of a cellular telephone network, comprising:
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means for measuring communications load on a control channel of the air interface; and processing means responsive to the measured communications load for permitting transmission of a requested short message service message over the control channel if a length of the requested short message service message does not exceed a maximum permitted message length derived from the measured control channel load. - View Dependent Claims (10, 11, 12)
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13. A system for controlling the flow of short message service messages over an air interface of a cellular telephone network, comprising:
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means for measuring communications load on a control channel of the air interface; and processing means responsive to the measured communications load for refusing transmission of a requested short message service message over the control channel if a length of the requested short message service message exceeds a maximum permitted message length derived from the measured control channel load. - View Dependent Claims (14, 15, 16)
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17. A method for controlling the flow of short message service messages over an air interface comprising the steps of:
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measuring communications load on a control channel of the air interface; determining a maximum permitted length for a short message service message based on the measured control channel load; responsive to a request for short message service transmission, comparing an identified length for the requested short message service message transmission to the determined maximum permitted length; and permitting the requested short message service message transmission if the identified length does not exceed the determined maximum permitted length. - View Dependent Claims (18, 19, 20, 21)
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Specification