Forward link power control of multiple data streams transmitted to a mobile station using a common power control channel

In a mobile radio telephone communication system, a method for controlling transmit power levels of a plurality of different data streams transmitted from at least one base station to a mobile station, comprising the steps of:

• (a) transmitting a first data stream from the at least one base station to the mobile station, and transmitting a second data stream from the at least one base station to the mobile station;
• (b) receiving the first and second data streams at the mobile station;
• (c) forming a first stream of power control commands at the mobile station in accordance with the first received data stream, and forming a second stream of power control commands at mobile station in accordance with the second received data stream;
• (d) forming a power control signal at the mobile station by interleaving the first and second streams of power control commands;
• (e) transmitting the interleaved power control signal from the mobile station to the at least one base station;
• (f) receiving the interleaved power control signal at the at least one base station;
• (g) forming first and second received streams of power control commands by deinterleaving the received power control signal at the at least one base station;
• and
• (h) controlling a transmit power level of the first data stream from the at least base station in accordance with the first received stream of power control commands, and controlling a transmit power level of the second data stream from the at least one base station in accordance with the second received stream of power control commands.

In a mobile radio telephone communication system, a method for controlling transmit power levels of a plurality of different data streams transmitted from at least first and second base stations to a mobile station, comprising the steps of:

• (a) transmitting a first data stream from the first and second base stations to the mobile station, and transmitting a second data stream from the first base station to the mobile station;
• (b) receiving, at the mobile station, the first data stream from the first base station and from the second base station, and receiving the second data stream from the first base station at the mobile station;
• (c) forming a first stream of power control commands at the mobile station, wherein the first stream of power control commands is determined in accordance with the first data stream received from the first base station and the first data stream received from the second base station, and forming a second stream of power control commands at the mobile station, wherein the second stream of power control commands is determined in accordance with the second data stream received from the first base station;
• (d) forming a power control signal at the mobile station from the first stream of power control commands and the second stream of power control commands;
• (e) transmitting the power control signal from the mobile station to the first base station;
• (f) receiving the power control signal at the first base station;
• (g) forming a first received stream of power control commands and a second received stream of power control commands from the received power control signal at the first base station;
• and
• (h) controlling a transmit power level of the first data stream from the first base station in accordance with the first received stream of power control commands, and controlling a transmit power level of the second data stream from the first base station in accordance with the second received stream of power control commands.

In a mobile radio telephone communication system, a method for controlling transmit power levels of a plurality of different data streams transmitted from at least first and second base stations to a mobile station, comprising the steps of:

• (a) transmitting a first data stream from the first and second base stations to the mobile station, and transmitting a second data stream from the first base station to the mobile station;
• (b) receiving, at the mobile station, the first data stream from the first base station and from the second base station, and receiving the second data stream from the first base station at the mobile station;
• (c) forming a first stream of power control commands at the mobile station, wherein the first stream of power control commands is determined in accordance with the first data stream received from the first base station and the first data stream received from the second base station, and forming a second stream of power control commands at the mobile station, wherein the second stream of power control commands is determined in accordance with the second data stream received from the first base station;
• (d) forming a power control signal at the mobile station from the first stream of power control commands and the second stream of power control commands;
• (e) transmitting the power control signal from the mobile station to the first base station and the second base station;
• (f) receiving the power control signal at the first base station and the second base station;
• (g) forming a first received stream of power control commands at the first base station and a second received stream of power control commands from the received power control signal at the second base station;
• and
• (h) controlling a transmit power level of the first data stream from the first base station in accordance with the first received stream of power control commands, controlling a transmit power level of the second data stream from the first base station in accordance with the first received stream of power control commands, and controlling a transmit power level of the first data stream from the second base station in accordance with the second received stream of power control commands.

In a mobile radio telephone communication system, a method for controlling transmit power levels of a first data stream transmitted to a mobile station from one or more base stations in a first active set of base stations and the transmit power levels of a second data stream transmitted from one or more base stations in a second set of active base stations to the mobile station, comprising the steps of:

• (a) transmitting the first data stream from the first active set of base stations to the mobile station, and transmitting the second data stream from the second active set of base stations to the mobile station;
• (b) receiving, at the mobile station, the first data stream from the first active set of base stations, and receiving the second data stream from the second active set of base stations at the mobile station;
• (c) forming a first stream of power control commands at the mobile station, wherein the first stream of power control commands is determined in accordance with the first data stream received from each base station in the second active set of base stations and the second data stream received from each base station in the second active set of base stations, and forming a second stream of power control commands at the mobile station, wherein the second stream of power control commands is determined in accordance with the first data stream received from each base station in the first active set of base stations and not in the second set of active base stations;
• (d) forming a power control signal at the mobile station from the first stream of power control commands and the second stream of power control commands;
• (e) transmitting the power control signal from the mobile station to the first and second active sets of base stations;
• (f) receiving the power control signal at a first base station, wherein the first base station is in the first active set and the second active set of base stations;
• (g) forming a first received stream of power control commands at the first base station in accordance with the received power control signal, wherein the first received stream of power control commands corresponds to the first stream of power control commands formed at the mobile station;
• (h) controlling a transmit power level of the first data stream from the first base station in accordance with the first received stream of power control commands, and controlling a transmit power level of the second data stream from the first base station in accordance with the first received stream of power control commands;
• (j) receiving the power control signal at a second base station, wherein the second base station is in the first active set of base stations and not in the second active set of base stations;
• (j) forming a second received stream of power control commands at the second base station in accordance with the received power control signal, wherein the second received stream of power control commands corresponds to the second stream of power control commands formed at the mobile station;
• and
• (k) controlling a transmit power level of the first data stream from the second base station in accordance with the second received stream of power control commands.