Margin control in a data communication system
AssigneeQUALCOMM Incorporated
InventorsJack M. Holtzman, Gang Bao, David Puig Oses
Life of this patent
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Abstract
Techniques for improved margin control in a data communication system are disclosed. In one aspect, margin is adjusted in response to a first subpacket error rate. In another aspect, margin is further adjusted in response to an overall packet error rate. In yet another aspect, the first subpacket error rate is adjusted in response to an overall packet error rate. Various other aspects are also presented. These aspects have the benefit of responsive margin control when the overall packet error rate is relatively low, resulting in improved data throughput and increased system capacity.
Claims43
An apparatus, operable with a transmitter for transmitting packets, each packet transmitted in one or more subpackets, comprising:
- a receiver for receiving an error message in response to a subpacket transmission;
- and
- a processor for:
- increasing a power margin by a first value determined in accordance with a first subpacket error rate when the error message indicates the first subpacket was received in error;
- and
- decreasing the power margin by a second value when the error message indicates the first subpacket was received without error.
A wireless communication device, operable with a transmitter for transmitting packets, each packet transmitted in one or more subpackets, comprising:
- a receiver for receiving an error message in response to a subpacket transmission;
- and
- a processor for:
- increasing a power margin by a first value determined in accordance with a first subpacket error rate when the error message indicates the first subpacket was received in error;
- and
- decreasing the power margin by a second value when the error message indicates the first subpacket was received without error.
A wireless communication system, including a wireless communication device operable with a transmitter for transmitting packets, each packet transmitted in one or more subpackets, comprising:
- a receiver for receiving an error message in response to a subpacket transmission;
- and
- a processor for:
- increasing a power margin by a first value determined in accordance with a first subpacket error rate when the error message indicates the first subpacket was received in error;
- and
- decreasing the power margin by a second value when the error message indicates the first subpacket was received without error.
A method of margin control, comprising:
- receiving an error message in response to a subpacket transmission;
- increasing a power margin by a first value determined in accordance with a first subpacket error rate when the error message indicates the first subpacket was received in error;
- and
- decreasing the power margin by a second value when the error message indicates the first subpacket was received without error.
An apparatus, comprising:
- means for receiving an error message in response to a subpacket transmission;
- means for increasing a power margin by a first value determined in accordance with a first subpacket error rate when the error message indicates the first subpacket was received in error;
- and
- means for decreasing the power margin by a second value when the error message indicates the first subpacket was received without error.
A wireless communication system, comprising:
- means for receiving an error message in response to a subpacket transmission;
- means for increasing a power margin by a first value determined in accordance with a first subpacket error rate when the error message indicates the first subpacket was received in error;
- and
- means for decreasing the power margin by a second value when the error message indicates the first subpacket was received without error.
A computer readable medium encoded with instructions capable of being executed by a computer to perform the following steps:
- receiving an error message in response to a subpacket transmission;
- increasing a power margin by a first value determined in accordance with a first subpacket error rate when the error message indicates the first subpacket was received in error;
- and
- decreasing the power margin by a second value when the error message indicates the first subpacket was received without error.
Dependencies are inferred from the claim text.