Method, apparatus, and system for optimizing transmission power and bit rate in multi-transmission scheme communication systems

A method for exchanging information in a communication system having a plurality of transmission schemes, the method comprising the steps of:

• selecting a first power level at which slices of information are capable of being exchanged over a communication link at a first slice rate;
• selecting a first transmission scheme that produces an acceptable link performance when exchanging information over the communication link at the first power level;
• reducing the first power level to a second power level;
• selecting a second transmission scheme for exchanging information over the communication link at the second power level that produces at least the acceptable link performance produced when exchanging information over the communication link at the first power level using the first transmission scheme;
• and
• exchanging slices of information over the communication link at the second power level and at a second slice rate using the second transmission scheme, wherein the second slice rate is at most equal to the first slice rate multiplied by a ratio of the first power level divided by the second power level,
• wherein the step of selecting the second transmission scheme comprises the steps of:
• selecting a transmission scheme that is a next less aggressive transmission scheme than the first transmission scheme;
• measuring the link performance while exchanging information over the communication link at the second power level using the next less aggressive transmission scheme;
• selecting the next less aggressive transmission as the second transmission scheme if the link performance of the next less aggressive transmission scheme is acceptable;
• and
• if the link performance of the next less aggressive transmission scheme is not acceptable, repeatedly selecting less aggressive transmission schemes, exchanging information over the communication link at the second power level using each respective less aggressive transmission scheme, and measuring the link performance of each respective less aggressive transmission scheme, until a selected less aggressive transmission scheme produces an acceptable link performance, wherein the selected less aggressive transmission scheme is the second transmission scheme.

A method for exchanging information in a communication system having a plurality of transmission schemes, the method comprising the steps of:

• selecting a first power level at which slices of information are capable of being exchanged over a communication link at a first slice rate;
• selecting a first transmission scheme that produces an acceptable link performance when exchanging information over the communication link at the first power level;
• reducing the first power level to a second power level;
• selecting a second transmission scheme for exchanging information over the communication link at the second power level that produces at least the acceptable link performance produced when exchanging information over the communication link at the first power level using the first transmission scheme;
• exchanging slices of information over the communication link at the second power level and at a second slice rate using the second transmission scheme, wherein the second slice rate is at most equal to the first slice rate multiplied by a ratio of the first power level divided by the second power level;
• and
• exchanging slices of information over the communication link at the first power level and at the first slice rate using the first transmission scheme when the slices of information cannot be exchanged at the second slice rate.

A method for exchanging information in a communication system having a plurality of transmission schemes, the method comprising the steps of:

• selecting a first power level at which slices of information are capable of being exchanged over a communication link at a first slice rate;
• selecting a first transmission scheme that produces an acceptable link performance when exchanging information over the communication link at the first power level;
• reducing the first power level to a second power level;
• selecting a second transmission scheme for exchanging information over the communication link at the second power level that produces at least the acceptable link performance produced when exchanging information over the communication link at the first power level using the first transmission scheme;
• and
• exchanging slices of information over the communication link at the second power level and at a second slice rate using the second transmission scheme, wherein the second slice rate is at most equal to the first slice rate multiplied by a ratio of the first power level divided by the second power level,
• wherein the method is implemented in a mobile station, whereby a net data transfer rate of the communication link is increased without substantially increasing an amount of heat generated in the mobile station.

A method for exchanging information in a communication system having a plurality of transmission schemes, the method comprising the steps of:

• selecting a first power level at which slices of information are capable of being exchanged over a communication link at a first slice rate;
• selecting a first transmission scheme that produces an acceptable link performance when exchanging information over the communication link at the first power level;
• reducing the first power level to a second power level;
• selecting a second transmission scheme for exchanging information over the communication link at the second power level that produces at least the acceptable link performance produced when exchanging information over the communication link at the first power level using the first transmission scheme;
• and
• exchanging slices of information over the communication link at the second power level and at a second slice rate using the second transmission scheme, wherein the second slice rate is at most equal to the first slice rate multiplied by a ratio of the first power level divided by the second power level,
• wherein the method is implemented in a base station, whereby a net data transfer rate of the communication link is increased without substantially increasing an amount of interference injected into nearby transmissions.

An apparatus for exchanging information in a communication system having a plurality of transmission schemes, the apparatus comprising:

• logic that selects a first power level at which slices of information are capable of being exchanged over a communication link at a first slice rate;
• logic that selects a first transmission scheme that produces an acceptable link performance when exchanging information over the communication link at the first power level;
• logic that reduces the first power level to a second power level;
• logic that selects a second transmission scheme for exchanging information over the communication link at the second power level that produces at least the acceptable link performance produced when exchanging information over the communication link at the first power level using the first transmission scheme;
• and
• a transceiver for exchanging slices of information over the communication link at the second power level and at a second slice rate using the second transmission scheme, wherein the second slice rate is at most equal to the first slice rate multiplied by a ratio of the first power level divided by the second power level,
• wherein the logic that selects the second transmission scheme comprises:
• logic that determines a first sensitivity associated with receiving information transmitted at the first power level using the first transmission scheme;
• logic that calculates a second sensitivity lower than the first sensitivity by an amount equivalent to the reduction in power between the first power level and the second power level;
• and
• logic that selects the second transmission scheme as that transmission scheme having a sensitivity closest to but not exceeding the second sensitivity.

An apparatus for exchanging information in a communication system having a plurality of transmission schemes, the apparatus comprising:

• logic that selects a first power level at which slices of information are capable of being exchanged over a communication link at a first slice rate;
• logic that selects a first transmission scheme that produces an acceptable link performance when exchanging information over the communication link at the first power level;
• logic that reduces the first power level to a second power level;
• logic that selects a second transmission scheme for exchanging information over the communication link at the second power level that produces at least the acceptable link performance produced when exchanging information over the communication link at the first power level using the first transmission scheme;
• and
• a transceiver for exchanging slices of information over the communication link at the second power level and at a second slice rate using the second transmission scheme, wherein the second slice rate is at most equal to the first slice rate multiplied by a ratio of the first power level divided by the second power level,
• wherein the logic that selects the second transmission scheme comprises:
• logic that selects a transmission scheme that is a next less aggressive transmission scheme than the first transmission scheme;
• logic that measures the link performance while exchanging information over the communication link at the second power level using the next less aggressive transmission scheme;
• logic that selects the next less aggressive transmission as the second transmission scheme if the link performance of the next less aggressive transmission scheme is acceptable;
• and
• logic that, if the link performance of the next less aggressive transmission scheme is not acceptable, repeatedly selects less aggressive transmission schemes, exchanges information over the communication link at the second power level using each respective less aggressive transmission scheme, and measures the link performance of each respective less aggressive transmission scheme, until a selected less aggressive transmission scheme produces an acceptable link performance, wherein the selected less aggressive transmission scheme is the second transmission scheme.

An apparatus for exchanging information in a communication system having a plurality of transmission schemes, the apparatus comprising:

• logic that selects a first power level at which slices of information are capable of being exchanged over a communication link at a first slice rate;
• logic that selects a first transmission scheme that produces an acceptable link performance when exchanging information over the communication link at the first power level;
• logic that reduces the first power level to a second power level;
• logic that selects a second transmission scheme for exchanging information over the communication link at the second power level that produces at least the acceptable link performance produced when exchanging information over the communication link at the first power level using the first transmission scheme;
• and
• a transceiver for exchanging slices of information over the communication link at the second power level and at a second slice rate using the second transmission scheme, wherein the second slice rate is at most equal to the first slice rate multiplied by a ratio of the first power level divided by the second power level,
• wherein the transceiver exchanges slices of information over the communication link at the first power level and at the first slice rate using the first transmission scheme when the slices of information cannot be exchanged at the second slice rate.

An apparatus for exchanging information in a communication system having a plurality of transmission schemes, the apparatus comprising:

• logic that selects a first power level at which slices of information are capable of being exchanged over a communication link at a first slice rate;
• logic that selects a first transmission scheme that produces an acceptable link performance when exchanging information over the communication link at the first power level;
• logic that reduces the first power level to a second power level;
• logic that selects a second transmission scheme for exchanging information over the communication link at the second power level that produces at least the acceptable link performance produced when exchanging information over the communication link at the first power level using the first transmission scheme;
• and
• a transceiver for exchanging slices of information over the communication link at the second power level and at a second slice rate using the second transmission scheme, wherein the second slice rate is at most equal to the first slice rate multiplied by a ratio of the first power level divided by the second power level,
• wherein the apparatus is implemented in a mobile station, whereby a net data transfer rate of the communication link is increased without substantially increasing an amount of heat generated in the mobile station.

An apparatus for exchanging information in a communication system having a plurality of transmission schemes, the apparatus comprising:

• logic that selects a first power level at which slices of information are capable of being exchanged over a communication link at a first slice rate;
• logic that selects a first transmission scheme that produces an acceptable link performance when exchanging information over the communication link at the first power level;
• logic that reduces the first power level to a second power level;
• logic that selects a second transmission scheme for exchanging information over the communication link at the second power level that produces at least the acceptable link performance produced when exchanging information over the communication link at the first power level using the first transmission scheme;
• and
• a transceiver for exchanging slices of information over the communication link at the second power level and at a second slice rate using the second transmission scheme, wherein the second slice rate is at most equal to the first slice rate multiplied by a ratio of the first power level divided by the second power level,
• wherein the apparatus is implemented in a base station, whereby a net data transfer rate of the communication link is increased without substantially increasing an amount of interference injected into nearby transmissions.

A communication system having a plurality of transmission schemes, the system comprising:

• at least one base station;
• at least one mobile station coupled to the at least base station by a corresponding communication link;
• logic that selects a first power level at which slices of information are capable of being exchanged over the communication link at a first slice rate;
• logic that selects a first transmission scheme that produces an acceptable link performance when exchanging information over the communication link at the first power level;
• logic that reduces the first power level to a second power level;
• logic that selects a second transmission scheme for exchanging information over the communication link at the second power level that produces at least the acceptable link performance produced when exchanging information over the communication link at the first power level using the first transmission scheme;
• and
• a transceiver in each of the at least one mobile and base stations for exchanging slices of information over the communication link at the second power level and at a second slice rate using the second transmission scheme, wherein the second slice rate is at most equal to the first slice rate multiplied by a ratio of the first power level divided by the second power level,
• wherein the logic that selects the second transmission scheme comprises:
• logic that determines a first sensitivity associated with receiving information transmitted at the first power level using the first transmission scheme;
• logic that calculates a second sensitivity lower than the first sensitivity by an amount equivalent to the reduction in power between the first power level and the second power level;
• and
• logic that selects the second transmission scheme as that transmission scheme having a sensitivity closest to but not exceeding the second sensitivity.

A communication system having a plurality of transmission schemes, the system comprising:

• at least one base station;
• at least one mobile station coupled to the at least base station by a corresponding communication link;
• logic that selects a first power level at which slices of information are capable of being exchanged over the communication link at a first slice rate;
• logic that selects a first transmission scheme that produces an acceptable link performance when exchanging information over the communication link at the first power level,
• logic that reduces the first power level to a second power level;
• logic that selects a second transmission scheme for exchanging information over the communication link at the second power level that produces at least the acceptable link performance produced when exchanging information over the communication link at the first power level using the first transmission scheme;
• and
• a transceiver in each of the at least one mobile and base stations for exchanging slices of information over the communication link at the second power level and at a second slice rate using the second transmission scheme, wherein the second slice rate is at most equal to the first slice rate multiplied by a ratio of the first power level divided by the second power level,
• wherein the logic that selects the second transmission scheme comprises:
• logic that selects a transmission scheme that is a next less aggressive transmission scheme than the first transmission scheme;
• logic that measures the link performance while exchanging information over the communication link at the second power level using the next less aggressive transmission scheme;
• logic that selects the next less aggressive transmission as the second transmission scheme if the link performance of the next less aggressive transmission scheme is acceptable;
• and
• logic that, if the link performance of the next less aggressive transmission scheme is not acceptable, repeatedly selects less aggressive transmission schemes, exchanges information over the communication link at the second power level using each respective less aggressive transmission scheme, and measures the link performance of each respective less aggressive transmission scheme, until a selected less aggressive transmission scheme produces an acceptable link performance, wherein the selected less aggressive transmission scheme is the second transmission scheme.

A communication system having a plurality of transmission schemes, the system comprising:

• at least one base station;
• at least one mobile station coupled to the at least base station by a corresponding communication link;
• logic that selects a first power level at which slices of information are capable of being exchanged over the communication link at a first slice rate;
• logic that selects a first transmission scheme that produces an acceptable link performance when exchanging information over the communication link at the first power level,
• logic that reduces the first power level to a second power level;
• logic that selects a second transmission scheme for exchanging information over the communication link at the second power level that produces at least the acceptable link performance produced when exchanging information over the communication link at the first power level using the first transmission scheme;
• and
• a transceiver in each of the at least one mobile and base stations for exchanging slices of information over the communication link at the second power level and at a second slice rate using the second transmission scheme, wherein the second slice rate is at most equal to the first slice rate multiplied by a ratio of the first power level divided by the second power level,
• wherein each transceiver exchanges slices of information over the communication link at the first power level and at the first slice rate using the first transmission scheme when the slices of information cannot be exchanged at the second slice rate.