Buffer Status Report Triggers in Wireless Communications

A computer program product, comprising:

• a non-transitory computer-readable medium comprising:
• code for transmitting a buffer status report;
• code for tracking an amount of time since transmitting the buffer status report;
• code for determining, after a selected amount of time since transmitting the buffer status report, whether information indicative of an authorization to transmit buffered data has been received and data is buffered for transmission;
• and
• code for transmitting a second buffer status report if the selected amount of time has elapsed, the information indicative of the authorization to transmit the buffered data has not been received, and data is buffered for transmission.

An apparatus that facilitates buffer status report robustness, the apparatus comprising:

• a buffer module configured to store buffered data;
• a controller module configured to generate a buffer status report indicative of an amount of the buffered data;
• a transmitter module configured to transmit the buffer status report;
• a receiver module configured to receive information indicative of an authorization to transmit buffered data;
• and
• a timer module configured to expire after a selected amount of time since transmission of the buffer status report,
• wherein the controller module is also configured to determine, after expiration of the timer module, whether the receiver module has received the information indicative of the authorization to transmit the buffered data and the buffer module is storing the buffered data, and
• wherein the transmitter module is also configured to transmit a second buffer status report after expiration of the timer module if the controller module determines that the receiver module has not received the information indicative of the authorization to transmit the buffered data and the buffer module is storing the buffered data.

An apparatus that facilitates buffer status report robustness, the apparatus comprising:

• means for buffering data;
• means for generating a buffer status report indicative of an amount of buffered data in the means for buffering data;
• means for transmitting the buffer status report;
• means for receiving information indicative of an authorization to transmit the buffered data;
• and
• means for timing an amount of time since transmission of the buffer status report, the means for timing being configured to expire after a selected amount of time,
• wherein the means for generating is also for determining, after expiration of the means for timing, whether the means for receiving has received information indicative of the authorization to transmit the buffered data and the means for buffering data includes the buffered data, and
• wherein the means for transmitting is also for transmitting a second buffer status report after expiration of the means for timing if the means for generating determines that the means for receiving has not received the information indicative of the authorization to transmit the buffered data and the means for buffering data includes the buffered data.

A computer program product, comprising:

• a non-transitory computer-readable medium comprising:
• code for receiving a buffer status report transmitted from an access terminal;
• and
• code for, in response to receiving an initial buffer status report transmitted from the access terminal and determining that a required amount of data is buffered for transmission, transmitting to the access terminal, information indicative of an authorization to transmit data,
• wherein the buffer status report transmitted from the access terminal is transmitted after a selected amount of time since the access terminal transmitted an initial buffer status report if the information indicative of the authorization to transmit data has not been received by the access terminal and the access terminal has data buffered for transmission.

An apparatus that facilitates buffer status report robustness, the apparatus comprising:

• a transmitter module configured to transmit information indicative of an authorization to transmit data buffered at an access terminal;
• a receiver module configured to receive a buffer status report transmitted from the access terminal after a selected amount of time since the access terminal transmitted an initial buffer status report if the information indicative of the authorization to transmit data has not been received by the access terminal and the access terminal has data buffered for transmission;
• and
• a controller module configured to:
• evaluate the initial buffer status report transmitted from the access terminal;
• determine whether a required amount of data is buffered at the access terminal for transmission;
• and
• in response to determining that a required amount of data is buffered at the access terminal for transmission, control the transmitter module to transmit to the access terminal, the information indicative of the authorization to transmit the data buffered at the access terminal.

An apparatus that facilitates buffer status report robustness, the apparatus comprising:

• means for transmitting information indicative of an authorization to transmit data buffered at a user communication means;
• means for receiving a buffer status report transmitted from the user communication means after a selected amount of time since the user communication means transmitted an initial buffer status report has elapsed if the information indicative of the authorization to transmit the data buffered has not been received by the user communication means and data is buffered at the user communication means;
• and
• means for controlling, the means for controlling being configured to:
• evaluate the initial buffer status report transmitted from the user communication means;
• determine whether a required amount of data is buffered at the user communication means for transmission;
• and
• in response to determining that a required amount of data is buffered at the user communication means for transmission, control the means for transmitting to transmit to the user communication means, the information indicative of the authorization to transmit the data buffered at the user communication means.

A system for facilitating buffer status report robustness, the system comprising:

• a wireless communication channel;
• a base station configured to communicate over the wireless communication channel;
• and
• an access terminal configured to transmit to the base station over the wireless communication channel, the access terminal comprising:
• a buffer module configured to store buffered data;
• a first controller module configured to generate a buffer status report indicative of an amount of the buffered data;
• a first transmitter module configured to transmit the buffer status report to the base station;
• a first receiver module configured to receive information indicative of an authorization to transmit the buffered data, wherein the information indicative of the authorization to transmit the buffered data is received from the base station;
• and
• a timer module configured to expire after a selected amount of time since transmission of the buffer status report to the base station,
• wherein the first controller module is also configured to determine, after expiration of the timer module, whether the first receiver module has received information indicative of the authorization to transmit the buffered data and the buffer module is storing the buffered data, and
• wherein the first transmitter module is also configured to transmit a second buffer status report after expiration of the timer module if the first controller module determines that the first receiver module has not received information indicative of the authorization to transmit the buffered data and the buffer module is storing the buffered data.

A method that facilitates buffer status report robustness, the method comprising:

• transmitting a buffer status report;
• tracking an amount of time elapsed since transmitting the buffer status report;
• determining, after a selected amount of time since transmitting the buffer status report, whether information indicative of authorization to transmit buffered data has been received and data is buffered for transmission;
• transmitting a second buffer status report if the selected amount of time has elapsed, the information indicative of the authorization to transmit the buffered data has not been received, and data is buffered for transmission;
• receiving the second buffer status report that is transmitted;
• and
• transmitting to an access terminal, the information indicative of the authorization to transmit the buffered data, in response to receiving the buffer status report that is transmitted from the access terminal, and determining that a required amount of data is buffered for transmission.