Method of adaptive channel acquisition at a subscriber unit
First Claim
1. In a data communications system including an infrastructure and a subscriber terminal, a method of acquiring an operating channel at a subscriber unit on power up comprising the steps of:
- maintaining a database having at least a current last used operating channel, a list of start-up channels successfully used with a last used operating channel and a count of instances when a particular start-up channel was successfully used with a particular last used operating channel for a given last operating channel;
turning on the subscriber unit;
identifying the current last used operating channel;
selecting, dependent on the step of identifying and dependent on the count of instances, from the database the particular start-up channel that is a first most frequently used channel to power up the subscriber unit;
thereby providing a preferred channel; and
attempting to acquire service on the preferred channel.
3 Assignments
0 Petitions
Accused Products
Abstract
In a data communications system including an infrastructure 100 and a subscriber terminal 115 a method of acquiring an operating channel at the subscriber unit on power up including: turning on the subscriber unit 203; selecting from a data base a most frequently used channel that corresponds to a last operating channel 209; and attempting to acquire service 213 on the most frequently used channel. Alternatively, in a similar setting at a subscriber terminal a method of acquiring a next operating channel including: exiting an operating channel 317; updating 319 a channel occupancy data base 301 with occupancy information corresponding to the operating channel; selecting, from the channel occupancy data base 309, a next operating channel that corresponds to information from past operating channels; and attempting to acquire service 313 on the next operating channel.
28 Citations
9 Claims
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1. In a data communications system including an infrastructure and a subscriber terminal, a method of acquiring an operating channel at a subscriber unit on power up comprising the steps of:
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maintaining a database having at least a current last used operating channel, a list of start-up channels successfully used with a last used operating channel and a count of instances when a particular start-up channel was successfully used with a particular last used operating channel for a given last operating channel; turning on the subscriber unit; identifying the current last used operating channel; selecting, dependent on the step of identifying and dependent on the count of instances, from the database the particular start-up channel that is a first most frequently used channel to power up the subscriber unit;
thereby providing a preferred channel; andattempting to acquire service on the preferred channel. - View Dependent Claims (2, 3, 4, 5)
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6. In a data communications system including an infrastructure and a subscriber unit, a method of adaptively acquiring an operating channel at a subscriber unit comprising the steps of:
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retaining a last used channel when the subscriber unit goes out of service; acquiring a subsequent start-up channel when the subscriber unit next requires service; pairing the last used channel with the subsequent start-up channel; updating a database with information corresponding to the last used channel and the subsequent start-up channel; prioritizing all start-up channels in the database to create a prioritized database based on how frequently a particular start-up channel is paired with a particular last used channel; determining a current last used channel; selecting, when the subscriber unit next requires service, a most frequently used start-up channel that corresponds to the current last used channel; and attempting to acquire service on the most frequently used start-up channel that corresponds to the current last used channel. - View Dependent Claims (7)
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8. In a data communications system including an infrastructure and a subscriber unit, a method of acquiring an operating channel at a subscriber unit on power up comprising the steps of:
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maintaining a database having at least a current last used operating channel, a list of start-up channels successfully used with a last used operating channel and a count of instances when a particular start-up channel was successfully used with a particular last used operating channel turning on the subscriber unit; determining a last operating channel; selecting from a database a most frequently used start-up channel that is a first most frequently used channel to power up the subscriber unit when the subscriber unit powers down on the last operating channel, thereby providing a preferred channel; attempting to acquire service on the preferred channel; and upon failure to acquire service on the preferred channel, selecting from the database a second-most frequently used start-up channel that is associated with the last operating channel.
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9. A method of acquiring an operating channel at a subscriber unit on power up comprising the steps of:
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maintaining a database having at least a current last used operating channel, a list of start-up channels successfully used with a last used operating channel and a count of instances when a particular start-up channel was successfully used with a particular last used operating channel; turning on the subscriber unit; identifying the current last used operating channel; selecting, dependent on the step of identifying and dependent on the count of instances, from the database the particular start-up channel that is a first most frequently used channel to power up the subscriber unit, thereby providing a preferred channel; and attempting to acquire service on the preferred channel.
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Specification