Remote transmitter power control in a contention based multiple access system

Claim 1

A method for controlling transmit power of a plurality of radios, the plurality of radios communicating with a base station, the method comprising the steps of: the base station determining the transmit power required from each radio of the plurality of radios; the base station instructing more than one of the plurality of radios to monitor a single power control bit stream; and the base station transmitting said single power control bit stream to the more than one of the plurality of radios to instruct each of the more than one of the plurality of radios to alter its transmit power in response to the required transmit power.

Claim 2

A method for controlling transmit power of a plurality of radios, the plurality of radios communicating with a base station, the method comprising the steps of: the base station determining the transmit power required from each radio of the plurality of radios; the base station instructing more than one of the plurality of radios to monitor a single power control bit stream; and the base station transmitting said single power control bit stream to the more than one of the plurality of radios to instruct each of the more than one of the plurality of radios to alter its transmit power in response to the required transmit power.

Claim 7

A method for controlling a power output of a remote transmitter in a first mobile radio of a plurality of mobile radios, the first mobile radio receiving signals from a base station over a forward channel wherein said forward channel includes a first slot assigned to at least said first mobile radio and a second slot assigned to at least one other of said plurality of mobile radios, the base station receiving signals from the first mobile radio over a reverse channel, the method comprising the steps of: determining a maximum reverse channel signal quality metric; determining a desired reverse channel signal quality metric; determining a reverse channel signal quality metric for each of the plurality of mobile radios, thus creating a plurality of reverse channel signal quality metrics; determining a minimum reverse channel signal quality metric of the plurality of mobile radios; summing the plurality of reverse channel signal quality metrics; and the base station instructing the first mobile radio to monitor transmission of power control information in said first slot, said power control information instructing the remote transmitter to decrease the power output if the sum of the reverse channel signal quality metrics is greater than or equal to the maximum reverse channel signal quality metric or the minimum reverse channel signal quality metric is greater than the desired reverse channel signal quality metric.

Claim 8

A method for controlling a power output of a remote transmitter in a first mobile radio of a plurality of mobile radios, the first mobile radio receiving signals from a base station over a forward channel wherein said forward channel includes a first slot assigned to at least said first mobile radio and a second slot assigned to at least one other of said plurality of mobile radios, the base station receiving signals from the first mobile radio over a reverse channel, the method comprising the steps of: determining a maximum reverse channel signal quality metric; determining a desired reverse channel signal quality metric; determining a reverse channel signal quality metric for each of the plurality of mobile radios, thus creating a plurality of reverse channel signal quality metrics; determining a minimum reverse channel signal quality metric of the plurality of mobile radios; summing the plurality of reverse channel signal quality metrics; and the base station instructing the first mobile radio to monitor transmission of power control information in said first slot, said power control information instructing the remote transmitter to decrease the power output if the sum of the reverse channel signal quality metrics is greater than or equal to the maximum reverse channel signal quality metric or the minimum reverse channel signal quality metric is greater than the desired reverse channel signal quality metric.

Claim 14

A method for controlling a power output of a remote transmitter in a first mobile radio of a plurality of mobile radios, the first mobile radio receiving signals from a base station over a forward channel, the base station receiving signals from the first mobile radio over a reverse channel, the method comprising the steps of: determining a maximum reverse channel signal quality metric; determining a desired reverse channel signal quality metric; determining a reverse channel signal quality metric for each of the plurality of mobile radios, thus creating a plurality of reverse channel signal quality metrics; determining a minimum reverse channel signal quality metric of the plurality of mobile radios; summing the plurality of reverse channel signal quality metrics; and the base station instructing the remote transmitter to monitor power control information associated with a predefined slot of said forward channel, said power control information instructing the remote transmitter to increase the power output if the sum of the reverse signal quality metrics is less than the maximum reverse channel signal quality metric.

Claim 15

A method for controlling a power output of a remote transmitter in a first mobile radio of a plurality of mobile radios, the first mobile radio receiving signals from a base station over a forward channel, the base station receiving signals from the first mobile radio over a reverse channel, the method comprising the steps of: determining a maximum reverse channel signal quality metric; determining a desired reverse channel signal quality metric; determining a reverse channel signal quality metric for each of the plurality of mobile radios, thus creating a plurality of reverse channel signal quality metrics; determining a minimum reverse channel signal quality metric of the plurality of mobile radios; summing the plurality of reverse channel signal quality metrics; and the base station instructing the remote transmitter to monitor power control information associated with a predefined slot of said forward channel, said power control information instructing the remote transmitter to increase the power output if the sum of the reverse signal quality metrics is less than the maximum reverse channel signal quality metric.

Claim 18

A method for controlling a power output of a remote transmitter in a first mobile radio of a plurality of mobile radios, the first mobile radio receiving signals from a base station over a forward channel, the base station receiving signals from the first mobile radio over a reverse channel, the method comprising the steps of: determining a maximum reverse channel energy per bit to total interference spectral density ratio; determining a desired reverse channel energy per bit to total interference spectral density ratio; determining a reverse channel energy per bit to total interference spectral density ratio for each of the plurality of mobile radios, thus creating a plurality of reverse channel energy per bit to total interference spectral density ratios; determining a minimum reverse channel energy per bit to total interference spectral density ratio of the plurality of mobile radios; summing the plurality of reverse channel energy per bit to total interference spectral density ratios; and the base station instructing the remote transmitter to monitor power control information associated with a predefined slot of said forward channel, said power control information instructing the remote transmitter to increase the power output if the minimum reverse energy per bit to total interference spectral density ratio is less than or equal to the desired reverse channel energy per bit to total interference spectral density ratio.

Claim 19

A method for controlling a power output of a remote transmitter in a first mobile radio of a plurality of mobile radios, the first mobile radio receiving signals from a base station over a forward channel, the base station receiving signals from the first mobile radio over a reverse channel, the method comprising the steps of: determining a maximum reverse channel energy per bit to total interference spectral density ratio; determining a desired reverse channel energy per bit to total interference spectral density ratio; determining a reverse channel energy per bit to total interference spectral density ratio for each of the plurality of mobile radios, thus creating a plurality of reverse channel energy per bit to total interference spectral density ratios; determining a minimum reverse channel energy per bit to total interference spectral density ratio of the plurality of mobile radios; summing the plurality of reverse channel energy per bit to total interference spectral density ratios; and the base station instructing the remote transmitter to monitor power control information associated with a predefined slot of said forward channel, said power control information instructing the remote transmitter to increase the power output if the minimum reverse energy per bit to total interference spectral density ratio is less than or equal to the desired reverse channel energy per bit to total interference spectral density ratio.

Claim 20

A method for controlling power output of a first remote transmitter of a plurality of remote transmitters, each remote transmitter being part of a mobile radiotelephone, the plurality of mobile radiotelephones receiving data packets from a cellular base station over a forward channel, the cellular base station receiving data packets from the plurality of mobile radiotelephones over a reverse channel, the reverse channel having a maximum energy per bit to total interference spectral density ratio, the data packets being comprised of frames, the method comprising the steps of: determining a desired reverse channel energy per bit to total interference spectral density ratio; determining a energy per bit to total interference spectral density ratio on the reverse channel for each of the remote transmitters, thereby creating a plurality of energy per bit to total interference spectral density ratios; summing the plurality of energy per bit to total interference spectral density ratios to produce a summation value; determining a minimum reverse channel energy per bit to total interference spectral density ratio for the plurality of mobile radiotelephones; comparing the maximum reverse channel energy per bit to total interference spectral density ratio to the summation value; comparing the minimum reverse channel energy per bit to total interference spectral density ratio to the desired energy per bit to total interference spectral density ratio; and the base station instructing the first remote transmitter to decrease power if the summation value is greater than or equal to the maximum reverse channel energy per bit to total interference spectral density ratio or the minimum reverse channel energy per bit to total interference spectral density ratio is greater than the desired reverse channel energy per bit to total interference spectral density ratio.

Claim 21

A method for controlling power output of a first remote transmitter of a plurality of remote transmitters, each remote transmitter being part of a mobile radiotelephone, the plurality of mobile radiotelephones receiving data packets from a cellular base station over a forward channel, the cellular base station receiving data packets from the plurality of mobile radiotelephones over a reverse channel, the reverse channel having a maximum energy per bit to total interference spectral density ratio, the data packets being comprised of frames, the method comprising the steps of: determining a desired reverse channel energy per bit to total interference spectral density ratio; determining a energy per bit to total interference spectral density ratio on the reverse channel for each of the remote transmitters, thereby creating a plurality of energy per bit to total interference spectral density ratios; summing the plurality of energy per bit to total interference spectral density ratios to produce a summation value; determining a minimum reverse channel energy per bit to total interference spectral density ratio for the plurality of mobile radiotelephones; comparing the maximum reverse channel energy per bit to total interference spectral density ratio to the summation value; comparing the minimum reverse channel energy per bit to total interference spectral density ratio to the desired energy per bit to total interference spectral density ratio; and the base station instructing the first remote transmitter to decrease power if the summation value is greater than or equal to the maximum reverse channel energy per bit to total interference spectral density ratio or the minimum reverse channel energy per bit to total interference spectral density ratio is greater than the desired reverse channel energy per bit to total interference spectral density ratio.

Claim 25

A method for controlling power output of a first remote transmitter of a plurality of remote transmitters, each remote transmitter being part of a mobile radiotelephone, the plurality of mobile radiotelephones receiving data packets from a cellular base station over a forward channel, the cellular base station receiving data packets from the plurality of mobile radiotelephones over a reverse channel, the reverse channel having a maximum energy per bit to total interference spectral density ratio, the data packets being comprised of frames, the method comprising the steps of: determining a desired reverse channel energy per bit to total interference spectral density ratio; determining a energy per bit to total interference spectral density ratio on the reverse channel for each of the remote transmitters, thereby creating a plurality of energy per bit to total interference spectral density ratios; summing the plurality of energy per bit to total interference spectral density ratios to produce a summation value; determining a minimum reverse channel energy per bit to total interference spectral density ratio for the plurality of mobile radiotelephones; comparing the maximum reverse channel energy per bit to total interference spectral density ratio to the summation value; comparing the minimum reverse channel energy per bit to total interference spectral density ratio to the desired energy per bit to total interference spectral density ratio; and the base station instructing the first remote transmitter to increase power if the summation value is less than the maximum reverse channel energy per bit to total interference spectral density ratio and the minimum reverse channel energy per bit to total interference spectral density ratio is less than or equal to the desired reverse channel energy per bit to total interference spectral density ratio.

Claim 26

A method for controlling power output of a first remote transmitter of a plurality of remote transmitters, each remote transmitter being part of a mobile radiotelephone, the plurality of mobile radiotelephones receiving data packets from a cellular base station over a forward channel, the cellular base station receiving data packets from the plurality of mobile radiotelephones over a reverse channel, the reverse channel having a maximum energy per bit to total interference spectral density ratio, the data packets being comprised of frames, the method comprising the steps of: determining a desired reverse channel energy per bit to total interference spectral density ratio; determining a energy per bit to total interference spectral density ratio on the reverse channel for each of the remote transmitters, thereby creating a plurality of energy per bit to total interference spectral density ratios; summing the plurality of energy per bit to total interference spectral density ratios to produce a summation value; determining a minimum reverse channel energy per bit to total interference spectral density ratio for the plurality of mobile radiotelephones; comparing the maximum reverse channel energy per bit to total interference spectral density ratio to the summation value; comparing the minimum reverse channel energy per bit to total interference spectral density ratio to the desired energy per bit to total interference spectral density ratio; and the base station instructing the first remote transmitter to increase power if the summation value is less than the maximum reverse channel energy per bit to total interference spectral density ratio and the minimum reverse channel energy per bit to total interference spectral density ratio is less than or equal to the desired reverse channel energy per bit to total interference spectral density ratio.

Claim 29

A method for controlling transmit power of a plurality of radios, the plurality of radios communicating with a base station, the method comprising the steps of: the base station determining the transmit power required from each radio of the plurality of radios; the base station transmitting a power control message multiplexed into a series of power control slots, each of said power control slots including power control information instructing each radio within an associated subset of said plurality of radios to alter its transmit power; the base station instructing each radio within the same said associated subset to monitor said power control information in a same one of said power control slots.

Claim 30

A method for controlling transmit power of a plurality of radios, the plurality of radios communicating with a base station, the method comprising the steps of: the base station determining the transmit power required from each radio of the plurality of radios; the base station transmitting a power control message multiplexed into a series of power control slots, each of said power control slots including power control information instructing each radio within an associated subset of said plurality of radios to alter its transmit power; the base station instructing each radio within the same said associated subset to monitor said power control information in a same one of said power control slots.

Claim 31

A method for controlling transmit power of a plurality of radios using a power control message provided by a base station, the method comprising the steps of: receiving, at more than one of said plurality of radios, instructions to monitor the same selected portion of said power control message; and receiving, at said more than one of said plurality of radios, power control information within said same selected portion of said power control message, said power control information instructing each of said more than one of said plurality of radios to alter its transmit power in response to a required transmit power.

Claim 32

A method for controlling transmit power of a plurality of radios using a power control message provided by a base station, the method comprising the steps of: receiving, at more than one of said plurality of radios, instructions to monitor the same selected portion of said power control message; and receiving, at said more than one of said plurality of radios, power control information within said same selected portion of said power control message, said power control information instructing each of said more than one of said plurality of radios to alter its transmit power in response to a required transmit power.

Claim 33

A method for controlling transmit power of a plurality of radios using a power control message provided by a base station, the method comprising the steps of: transmitting, from said base station, instructions indicating that a subset said radios monitor the same selected portion of said power control message; and transmitting, from said base station, power control information within said same selected portion of said power control message, said power control information indicating that transmission power of each of said more than one of said plurality of radios should be altered in response to a required transmit power.

Claim 34

A method for controlling transmit power of a plurality of radios using a power control message provided by a base station, the method comprising the steps of: transmitting, from said base station, instructions indicating that a subset said radios monitor the same selected portion of said power control message; and transmitting, from said base station, power control information within said same selected portion of said power control message, said power control information indicating that transmission power of each of said more than one of said plurality of radios should be altered in response to a required transmit power.

Claim 35

A method for controlling transmit power of a plurality of radios, the plurality of radios communicating with a base station, the method comprising the steps of: the base station determining the transmit power required from each radio of the plurality of radios; the base station instructing a first subset of said plurality of radios to monitor a first power control bit stream, and a second subset of said plurality of radios to monitor a second power control bit stream; and the base station transmitting said first and said second power control bit streams to instruct each of the plurality of radios in the first and second subsets of said plurality of radios to alter its transmit power in response to the required transmit power.

Claim 36

A method for controlling transmit power of a plurality of radios, the plurality of radios communicating with a base station, the method comprising the steps of: the base station determining the transmit power required from each radio of the plurality of radios; the base station instructing a first subset of said plurality of radios to monitor a first power control bit stream, and a second subset of said plurality of radios to monitor a second power control bit stream; and the base station transmitting said first and said second power control bit streams to instruct each of the plurality of radios in the first and second subsets of said plurality of radios to alter its transmit power in response to the required transmit power.

Claim 37

A method for controlling transmit power of a plurality of radios, the plurality of radios communicating with a base station, the method comprising the steps of: the base station determining the transmit power required over a reverse channel from each radio of the plurality of radios; and the base station transmitting a single power control bit stream to the more than one of said plurality of radios to instruct each of the more than one of said plurality of radios to alter its transmit power in response to the required transmit power and in response to a maximum total reverse channel signal quality metric; wherein said maximum total reverse channel signal quality metric is set based upon a sum of reverse channel signal quality metrics associated with said plurality of radios.

Claim 38

A method for controlling transmit power of a plurality of radios, the plurality of radios communicating with a base station, the method comprising the steps of: the base station determining the transmit power required over a reverse channel from each radio of the plurality of radios; and the base station transmitting a single power control bit stream to the more than one of said plurality of radios to instruct each of the more than one of said plurality of radios to alter its transmit power in response to the required transmit power and in response to a maximum total reverse channel signal quality metric; wherein said maximum total reverse channel signal quality metric is set based upon a sum of reverse channel signal quality metrics associated with said plurality of radios.

Claim 39

A method for controlling a power output of a remote transmitter in a first mobile radio of a plurality of mobile radios, the first mobile radio receiving signals from a base station over a forward channel, the base station receiving signals from the first mobile radio over a reverse channel, the method comprising the steps of: determining a reverse channel signal quality metric for each of the plurality of mobile radios, thus creating a plurality of reverse channel signal quality metrics; summing the plurality of reverse channel signal quality metrics; and the base station instructing the remote transmitter to decrease the power output at least if the sum of the reverse channel signal quality metrics is greater than or equal to a maximum reverse channel signal to noise ratio.

Claim 40

A method for controlling a power output of a remote transmitter in a first mobile radio of a plurality of mobile radios, the first mobile radio receiving signals from a base station over a forward channel, the base station receiving signals from the first mobile radio over a reverse channel, the method comprising the steps of: determining a reverse channel signal quality metric for each of the plurality of mobile radios, thus creating a plurality of reverse channel signal quality metrics; summing the plurality of reverse channel signal quality metrics; and the base station instructing the remote transmitter to decrease the power output at least if the sum of the reverse channel signal quality metrics is greater than or equal to a maximum reverse channel signal to noise ratio.