Broadcast-multicast transmission with rate adaption

An apparatus for wireless communication, comprising:

• means for sending at least one transmission of a packet to multiple terminals, one transmission of the packet at a time;
• and
• means for receiving feedback information for the packet from the multiple terminals on at least one feedback channel shared by the multiple terminals, wherein the feedback information for the packet comprises negative acknowledgement (NAK);
• and
• means for detecting for NAK from any one of the multiple terminals at a base station after each transmission of the packet,
• wherein the means for detecting for NAK is configured to:
• determine received energy on resources for the at least one feedback channel,
• compare the received energy against a threshold, and
• declare a detected NAK if the received energy exceeds the threshold.

An apparatus for wireless communication, comprising:

• at least one processor configured to send at least one transmission of a packet to multiple terminals, one transmission of the packet at a time, and to receive feedback information for the packet from the multiple terminals on at least one feedback channel shared by the multiple terminals, wherein the feedback information for the packet comprises negative acknowledgement (NAK),
• the at least one processor further configured to detect for NAK from any one of the multiple terminals at a base station after each transmission of the packet,
• wherein the at least one processor detects for NAK by:
• determining received energy on resources for the at least one feedback channel,
• comparing the received energy against a threshold, and
• declaring a detected NAK if the received energy exceeds the threshold.

A computer program product, comprising:

• a non-transitory computer-readable medium comprising:
• code for causing at least one computer to send at least one transmission of a packet to multiple terminals, one transmission of the packet at a time, and
• code for causing the at least one computer to receive feedback information for the packet from the multiple terminals on at least one feedback channel shared by the multiple terminals, wherein the feedback information for the packet comprises negative acknowledgement (NAK);
• and
• code for causing the at least one computer to detect for NAK from any one of the multiple terminals at a base station after each transmission of the packet,
• wherein the code for causing the at least one computer to detect for NAK further causes the at least one computer to:
• determine received energy on resources for the at least one feedback channel,
• compare the received energy against a threshold, and
• declare a detected NAK if the received energy exceeds the threshold.

A method for wireless communication, comprising:

• receiving at a terminal at least one transmission of a packet sent by a base station to multiple terminals, one transmission of the packet at a time;
• sending feedback information for the packet from the terminal to the base station on at least one feedback channel shared by the multiple terminals, wherein the feedback information comprises negative acknowledgement (NAK), the NAK being used to select a transport format for the packet;
• and
• sending channel quality indicator (CQI) information from the terminal to the base station, the CQI information being used to select the transport format for the packet.

An apparatus for wireless communication, comprising:

• means for receiving at a terminal at least one transmission of a packet sent by a base station to multiple terminals, one transmission of the packet at a time;
• means for sending feedback information for the packet from the terminal to the base station on at least one feedback channel shared by the multiple terminals, wherein the feedback information comprises negative acknowledgement (NAK), the NAK being used to select a transport format for the packet;
• and
• means for sending channel quality indicator (CQI) information from the terminal to the base station, the CQI information being used to select the transport format for the packet.

A method for wireless communication, comprising:

• receiving channel quality indicator (CQI) information from at least one of multiple terminals receiving a broadcast/multicast transmission;
• selecting a transport format for at least one packet based on the CQI information;
• sending the at least one packet in accordance with the selected transport format to the multiple terminals for the broadcast/multicast transmission;
• receiving negative acknowledgement (NAK) for each packet from the multiple terminals;
• and
• selecting the transport format based further on NAK received for prior packets.

An apparatus for wireless communication, comprising:

• means for receiving channel quality indicator (CQI) information from at least one of multiple terminals receiving a broadcast/multicast transmission;
• means for selecting a transport format for at least one packet based on the CQI information;
• means for sending the at least one packet in accordance with the selected transport format to the multiple terminals for the broadcast/multicast transmission;
• and
• means for receiving negative acknowledgement (NAK) for each packet from the multiple terminals,
• wherein the means for selecting the transport format is configured to select the transport format based further on NAK received for prior packets.

A method for wireless communication, comprising:

• sending channel quality indicator (CQI) information from a terminal to a base station;
• receiving at least one packet sent by the base station to multiple terminals for a broadcast/multicast transmission, the terminal being one of the multiple terminals;
• sending negative acknowledgement (NAK) for each packet from the terminal to the base station;
• and
• processing the at least one packet in accordance with a transport format selected by the base station based on CQI information and NAK from at least one of the multiple terminals.

An apparatus for wireless communication, comprising:

• means for sending channel quality indicator (CQI) information from a terminal to a base station;
• means for receiving at least one packet sent by the base station to multiple terminals for a broadcast/multicast transmission, the terminal being one of the multiple terminals;
• means for sending negative acknowledgement (NAK) for each packet from the terminal to the base station;
• and
• means for processing the at least one packet in accordance with a transport format selected by the base station based on CQI information and NAK from at least one of the multiple terminals.

An apparatus for wireless communication, comprising:

• at least one processor configured to:
• receive at a terminal at least one transmission of a packet sent by a base station to multiple terminals, one transmission of the packet at a time;
• send feedback information for the packet from the terminal to the base station on at least one feedback channel shared by the multiple terminals, wherein the feedback information comprises negative acknowledgement (NAK), the NAK being used to select a transport format for the packet;
• and
• send channel quality indicator (CQI) information from the terminal to the base station, the CQI information being used to select the transport format for the packet.

A computer program product, comprising:

• a non-transitory computer-readable medium comprising code for causing at least one computer to:
• receive at a terminal at least one transmission of a packet sent by a base station to multiple terminals, one transmission of the packet at a time;
• send feedback information for the packet from the terminal to the base station on at least one feedback channel shared by the multiple terminals, wherein the feedback information comprises negative acknowledgement (NAK), the NAK being used to select a transport format for the packet;
• and
• send channel quality indicator (CQI) information from the terminal to the base station, the CQI information being used to select the transport format for the packet.

An apparatus for wireless communication, comprising:

• at least one processor configured to:
• receive channel quality indicator (CQI) information from at least one of multiple terminals receiving a broadcast/multicast transmission;
• select a transport format for at least one packet based on the CQI information;
• send the at least one packet in accordance with the selected transport format to the multiple terminals for the broadcast/multicast transmission;
• receive negative acknowledgement (NAK) for each packet from the multiple terminals;
• and
• select the transport format based further on NAK received for prior packets.

A computer program product, comprising:

• a non-transitory computer-readable medium comprising code for causing at least one computer to:
• receive channel quality indicator (CQI) information from at least one of multiple terminals receiving a broadcast/multicast transmission;
• select a transport format for at least one packet based on the CQI information;
• send the at least one packet in accordance with the selected transport format to the multiple terminals for the broadcast/multicast transmission;
• receive negative acknowledgement (NAK) for each packet from the multiple terminals;
• and
• select the transport format based further on NAK received for prior packets.

An apparatus for wireless communication, comprising:

• at least one processor configured to:
• send channel quality indicator (CQI) information from a terminal to a base station;
• receive at least one packet sent by the base station to multiple terminals for a broadcast/multicast transmission, the terminal being one of the multiple terminals;
• send negative acknowledgement (NAK) for each packet from the terminal to the base station;
• and
• process the at least one packet in accordance with a transport format selected by the base station based on CQI information and NAK from at least one of the multiple terminals.

A computer program product, comprising:

• a non-transitory computer-readable medium comprising code for causing at least one computer to:
• send channel quality indicator (CQI) information from a terminal to a base station;
• receive at least one packet sent by the base station to multiple terminals for a broadcast/multicast transmission, the terminal being one of the multiple terminals;
• send negative acknowledgement (NAK) for each packet from the terminal to the base station;
• and
• process the at least one packet in accordance with a transport format selected by the base station based on CQI information and NAK from at least one of the multiple terminals.