System and method for ensuring the availability of a radio data communications link
First Claim
1. A method for controlling the number of radio data messages received by a base station over a radio channel, the radio data messages comprising routine messages and non-routine messages from a plurality of mobile stations, said method comprising the steps of:
- transmitting to the plurality of mobile stations via the radio channel a first parameter for setting a frequency of occurrences of the routine messages;
monitoring, over a time period, a number of the radio data messages from the plurality of mobile stations requiring multiple transmissions for successful receipt by the base station; and
adjusting the first parameter responsive to the number of radio data messages requiring multiple transmissions determined in said monitoring step.
2 Assignments
0 Petitions
Accused Products
Abstract
A system and method for ensuring the availability of a radio data communications link for radio data messages between a fleet of mobile stations and a fixed base station is disclosed. The radio data messages between the mobile stations and the base station are composed of both routine messages as well as non-routine, priority messages. A parameter for adjusting the frequency of the routine messages is transmitted from the base station to the mobile stations. Over a selected time period, the number of radio data messages from the mobile stations to the base station which require multiple transmissions for successful receipt by the base station is monitored. At the end of this time period, the parameter is adjusted in response to the number of radio data messages which required multiple transmissions for successful receipt by the base station. The system repeats this method so that the frequency of the routine radio data messages is dynamically controlled.
-
Citations
20 Claims
-
1. A method for controlling the number of radio data messages received by a base station over a radio channel, the radio data messages comprising routine messages and non-routine messages from a plurality of mobile stations, said method comprising the steps of:
-
transmitting to the plurality of mobile stations via the radio channel a first parameter for setting a frequency of occurrences of the routine messages; monitoring, over a time period, a number of the radio data messages from the plurality of mobile stations requiring multiple transmissions for successful receipt by the base station; and adjusting the first parameter responsive to the number of radio data messages requiring multiple transmissions determined in said monitoring step. - View Dependent Claims (10, 11)
-
-
2. A method for controlling the number of radio data messages received by a base station over a radio channel, the radio data messages comprising routine messages and non-routine messages from a plurality of mobile stations, said method comprising the steps of:
-
transmitting to the plurality of mobile stations via the radio channel a first parameter for setting a frequency of occurrences of the routine messages; monitoring a number of the radio data messages requiring multiple transmissions for successful receipt by the base station over a time period; adjusting the first parameter responsive to the number of radio data messages requiring multiple transmissions determined in said monitoring step; calculating, at a first one of the plurality of mobile stations, a second parameter corresponding to a distance from a location at which the first one of the plurality of mobile stations received a first position update acknowledgement from the base station via the radio channel; transmitting a position update for the first one of the plurality of mobile stations to the base station via the radio channel responsive to the second parameter exceeding the first parameter; and transmitting a second position update acknowledgement from the base station to the first one of the plurality of mobile stations via the radio channel upon receipt of the position update. - View Dependent Claims (3, 4, 5, 6, 7, 8, 9)
-
-
12. A method for controlling the number of radio data messages received by a base station over a radio channel, the radio data messages comprising routine messages and non-routine messages, said method comprising the steps of:
-
transmitting to a source of the routine messages via the radio channel a first parameter for setting a frequency of occurrences of the routine messages; monitoring, over a time period, a first number of the radio data messages requiring at least one re-transmission for successful receipt by the base station; and monitoring, over the time period, a second number of the radio data messages requiring more than one re-transmission for successful receipt by the base station; and adjusting the first parameter responsive to the first and second numbers of the radio data messages requiring re-transmission.
-
-
13. A method for controlling the number of radio data messages received by a base station over a radio channel, the radio data messages comprising routine messages and non-routine messages, said method comprising the steps of:
-
transmitting to a source of the routine messages via the radio channel a first parameter for setting a frequency of occurrences of the routine messages; monitoring a number of the radio data messages requiring multiple transmissions for successful receipt by the base station over a time period; and adjusting the first parameter responsive to the number of radio data messages requiring multiple transmissions determined in said monitoring step, wherein said adjusting step comprises adjusting the first parameter responsive to a magnitude of adjustment of the first parameter in at least one time period prior to the time period.
-
-
14. A method for controlling the number of radio data messages received by a base station over a radio channel, the radio data messages comprising routine messages and non-routine messages, said method comprising the step of:
-
transmitting to a source of the routine messages via the radio channel a first parameter for setting a frequency of occurrences of the routine messages; monitoring a number of the radio data messages requiring multiple transmissions for successful receipt by the base station over a time period; adjusting the first parameter responsive to the number of radio data messages requiring multiple transmissions for successful receipt by the base station; monitoring a number of the radio data messages received by the base station over the time period; monitoring a time duration of the number of radio data messages received; and adjusting the first parameter responsive to the number of radio data messages received not exceeding a first predetermined threshold and to the time duration of the number of radio data messages received exceeding a second predetermined threshold.
-
-
15. A system for controlling the number of radio data messages received by a first radio over a radio channel, the radio data messages comprising routine messages and non-routine messages from a plurality of second radios, comprising:
-
a first radio capable of transmitting and receiving over a radio channel; a plurality of second radios capable of transmitting and receiving over the radio channel; a plurality of first computers electronically coupled to respective ones of said plurality of second radios for; transmitting the radio data messages to said first radio; and embedding a signal into each of the radio data messages transmitted to said first radio corresponding to a number of re-transmissions of each radio data message requiring for successful receipt by said first radio; a second computer electronically coupled to said first radio for; transmitting to said plurality of second radios a first parameter for setting a frequency of occurrences of the routine messages; determining, over a time period, a total number of the radio data messages from said plurality of second radios requiring multiple transmissions for successful receipt by said first radio responsive to the signal embedded into each of the radio data messages by said plurality of first computers; and adjusting the first parameter responsive to the total number of radio data messages requiring multiple transmissions. - View Dependent Claims (16, 17, 18, 19, 20)
-
Specification