Dynamic wireless link adaptation
First Claim
1. A method of dynamically adapting wireless link parameters, comprising:
- determining a measure of errors occurring in communication over a wireless link;
in a case that the measure of errors corresponds to more errors than a first predetermined threshold, changing from a first set of wireless link parameters to a second set of wireless link parameters, the second set of wireless link parameters corresponding higher error tolerance than the first set of wireless link parameters; and
in a case that the measure of errors corresponds to fewer errors than a second predetermined threshold, changing from the first set of wireless link parameters to a third set of wireless link parameters, the third set of wireless link parameters corresponding to lower error tolerance than the first set of wireless link parameters;
wherein;
each set of wireless link parameters corresponds to a relationship between throughput efficiency and error rate;
the first predetermined threshold corresponds to intersection of the relationship for the first set of wireless link parameters with the relationship for the second set of wireless link parameters; and
the second predetermined threshold corresponds to intersection of the relationship for the first set of wireless link parameters with the relationship for the third set of wireless link parameters.
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Abstract
A system that adapts wireless link parameters for a wireless communication link. A measure is determined of errors occurring in communication over a wireless link. In a case that the measure of errors corresponds to more errors than a first predetermined threshold, communication changes from a first set of wireless link parameters to a second set of wireless link parameters. The second set of wireless link parameters corresponds to higher error tolerance than the first set of wireless link parameters. In a case that the measure of errors corresponds to fewer errors than a second predetermined threshold, communication changes from the first set of wireless link parameters to a third set of wireless link parameters. The third set of wireless link parameters corresponds to lower error tolerance than the first set of wireless link parameters. Preferably, the measure of errors is determined by monitoring a number of NACK messages and a number of ACK messages that occur. It is determined that the measure of errors corresponds to more errors than the first predetermined threshold when more than a predetermined number of NACK messages occur in succession. It is determined that the measure of errors corresponds to fewer errors than the second predetermined threshold when more than a predetermined number of ACK messages occur in succession.
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Citations
27 Claims
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1. A method of dynamically adapting wireless link parameters, comprising:
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determining a measure of errors occurring in communication over a wireless link;
in a case that the measure of errors corresponds to more errors than a first predetermined threshold, changing from a first set of wireless link parameters to a second set of wireless link parameters, the second set of wireless link parameters corresponding higher error tolerance than the first set of wireless link parameters; and
in a case that the measure of errors corresponds to fewer errors than a second predetermined threshold, changing from the first set of wireless link parameters to a third set of wireless link parameters, the third set of wireless link parameters corresponding to lower error tolerance than the first set of wireless link parameters;
wherein;
each set of wireless link parameters corresponds to a relationship between throughput efficiency and error rate;
the first predetermined threshold corresponds to intersection of the relationship for the first set of wireless link parameters with the relationship for the second set of wireless link parameters; and
the second predetermined threshold corresponds to intersection of the relationship for the first set of wireless link parameters with the relationship for the third set of wireless link parameters. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. An apparatus that dynamically adapts wireless link parameters, comprising:
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a wireless link interface to a wireless link;
a processor; and
a memory storing instructions executable by the process to control communication over the wireless link interface, the instructions including the steps of;
(a) determining a measure of errors occurring in communication over the wireless link;
(b) in a case that the measure of errors corresponds to more errors than a first predetermined threshold, changing from a first set of wireless link parameters to a second set of wireless link parameters, the second set of wireless link parameters corresponding to higher error tolerance than the first set of wireless link parameters; and
(c) in a case that the measure of errors corresponds to fewer errors than a second predetermined threshold, changing from the first set of wireless link parameters to a third set of wireless link parameters, the third set of wireless link parameters corresponding to lower error tolerance than the first set of wireless link parameters;
wherein;
each set of wireless link parameters corresponds to a relationship between throughput efficiency and error rate;
the first predetermined threshold corresponds to intersection of the relationship for the first set of wireless link parameters with the relationship for the second set of wireless link parameters; and
the second predetermined threshold corresponds to intersection of the relationship for the first set of wireless link parameters with the relationship for the third set of wireless link parameters. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17, 18)
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19. A memory including instructions, the instructions executable by a processor to dynamically adapt wireless link parameters, the instructions comprising the steps of:
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determining a measure of errors occurring in communication over a wireless link;
in a case that the measure of errors corresponds to more errors than a first predetermined threshold, changing from a first set of wireless link parameters to a second set of wireless link parameters, the second set of wireless link parameters corresponding to higher error tolerance than the first set of wireless link parameters; and
in a case that the measure of errors corresponds to fewer errors than a second predetermined threshold, changing from the first set of wireless link parameters to a third set of wireless link parameters, the third set of wireless link parameters corresponding to lower error tolerance than the first set of wireless link parameters;
wherein;
each set of wireless link parameters corresponds to a relationship between throughput efficiency and error rate;
the first predetermined threshold corresponds to intersection of the relationship for the first set of wireless link parameters with the relationship for the second set of wireless link parameters; and
the second predetermined threshold corresponds to intersection of the relationship for the first set of wireless link parameters with the relationship for the third set of wireless link parameters. - View Dependent Claims (20, 21, 22, 23, 24, 25, 26, 27)
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Specification