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Embodiments include managing a reverse link transmission power level setpoint during periods of data inactivity on a reverse link traffic channel in a wireless communications system. At an access terminal, upon detecting reverse link data inactivity above a time threshold, a message is generated and

Embodiments include managing a reverse link transmission power level setpoint during periods of data inactivity on a reverse link traffic channel in a wireless communications system. At an access terminal, upon detecting reverse link data inactivity above a time threshold, a message is generated and transmitted on the reverse link traffic channel at a power level sufficient for the access network to measure transmission statistics to determine whether to adjust the current transmission power level setpoint of the access terminal. Alternatively, the access terminal notifies the access network of an upcoming reverse link data inactivity period, and then lowers its transmission power level setpoint to reduce power consumption during the reverse link data inactivity period. Then, upon detection of a potential reverse link data transmission, the access terminal may then send one or more messages to prompt the access network to modify the access terminal's transmission power level setpoint.

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1. A method of managing a reverse link transmission power level setpoint during periods of data inactivity on a reverse link traffic channel in a wireless communications system, comprising: determining, at an access terminal that is actively monitoring downlink transmissions associated with a commun

1. A method of managing a reverse link transmission power level setpoint during periods of data inactivity on a reverse link traffic channel in a wireless communications system, comprising: determining, at an access terminal that is actively monitoring downlink transmissions associated with a communication session, that no reverse link data transmissions from the access terminal to an access network have occurred on the reverse link traffic channel in more than a threshold period of time, the threshold period of time established at least in part based on one or more criteria associated with expected drift of a transmission power level setpoint of the access terminal during periods of reverse link data transmission inactivity;generating a message based on the determining; andtransmitting, while the access terminal continues to monitor downlink transmissions associated with the communication session, the message on the reverse link traffic channel to the access network at a first transmission power level based on a current transmission power level setpoint of the access terminal, the transmitted message sufficient for the access network to measure transmission statistics from which the access network can determine whether to adjust the current transmission power level setpoint of the access terminal. 2. The method of claim 1, further comprising: receiving, in response to the transmitting, one or more power level adjustment messages from the access network, the one or more power level adjustment messages each instructing the access terminal to increase or decrease the transmission power level setpoint; andadjusting the current transmission power level setpoint in accordance with the one or more power level adjustment messages. 3. The method of claim 2, further comprising: repeating the determining and the generating; andtransmitting the message on the reverse link traffic channel to the access network at a second transmission power level based on the adjusted transmission power level setpoint of the access terminal. 4. The method of claim 2, further comprising: determining to send data to the access network; andtransmitting the data on the reverse link traffic channel to the access network at a second transmission power level based on the adjusted transmission power level setpoint of the access terminal. 5. The method of claim 1, further comprising: transmitting a periodic pilot signal on the reverse link traffic channel based on the current transmission power level setpoint, the periodic pilot signal not qualifying as a data transmission that ends a period of reverse link data transmission inactivity. 6. A method of managing a reverse link transmission power level setpoint during periods of reverse link data inactivity on a reverse link traffic channel in a wireless communications system, comprising: entering a state that is characterized by predicted future traffic inactivity on the reverse link traffic channel for an access terminal;transmitting a message to an access network that includes an indication that indicates the access terminal will not be transmitting data on the reverse link traffic channel for a given period of time due to the predicted future traffic inactivity of the state;receiving, prior to the given period of time elapsing, one or more power level adjustment messages in response to the indication in the transmitted message irrespective of a quality level at which the access network receives the transmitted message, the one or more power level adjustment messages instructing the access terminal to decrease a transmission power level setpoint of the access terminal; anddecreasing the transmission power level setpoint of the access terminal in accordance with the one or more power level adjustment messages. 7. The method of claim 6, further comprising: transmitting a periodic pilot signal on the reverse link traffic channel based on the decreased transmission power level setpoint at least until another message is sent to the access network that indicates the access terminal expects to transmit or is transmitting data, the periodic pilot signal not qualifying as a data transmission that ends a period of reverse link data transmission inactivity. 8. The method of claim 6, further comprising: detecting conditions indicative of a possible data transmission from the access terminal within a threshold period of time;sending another message to the access network that indicates the access terminal may transmit data on the reverse link traffic channel within the threshold period of time;receiving one or more additional power level adjustment messages in response to the transmitted another message, the one or more additional power level adjustment messages instructing the access terminal to increase a transmission power level setpoint of the access terminal; andincreasing the transmission power level setpoint of the access terminal in accordance with the one or more power level adjustment messages. 9. The method of claim 8, further comprising: determining to transmit data from the access terminal to the access network; andtransmitting data on the reverse link traffic channel to the access network based on the increased transmission power level setpoint. 10. The method of claim 9, wherein the conditions indicative of the possible data transmission from the access terminal within the threshold period of time include one or more of (i) user input from a user of the access terminal, (ii) a floor release message for a group communication session, (iii) a period of downlink inactivity for the group communication session and (iv) a prediction based on an evaluation of past user behavior and current user behavior at the access terminal. 11. The method of claim 6, further comprising: determining to transmit data from the access terminal to the access network; andtransmitting the data at a transmission power level higher than called for by the transmission power level setpoint if the data has a high priority. 12. A method of operating an access terminal that is configured to manage a reverse link transmission power level setpoint during periods of reverse link data inactivity on a reverse link traffic channel in a wireless communications system, comprising: determining, during a period of reverse link data transmission inactivity, whether conditions are present indicative of a potential reverse link data transmission from the access terminal to an access network;transmitting, in advance of the potential reverse link data transmission being transmitted to the access network, a message to the access network at a first transmission power level, based on a current transmission power level setpoint, to request that the current transmission power level setpoint of the access terminal be adjusted to a level sufficient to satisfy a given success rate;receiving, in response to the transmitted message, one or more power level adjustment messages instructing the access terminal to adjust the current transmission power level setpoint; andadjusting the current transmission power level setpoint of the access terminal in accordance with the one or more power level adjustment messages. 13. The method of claim 12, further comprising: transmitting the potential reverse link data transmission to the access network at a second transmission power level based on the adjusted transmission power level setpoint. 14. The method of claim 12, wherein the conditions indicative of the potential reverse link data transmission include one or more of (i) user input from a user of the access terminal, (ii) a floor release message for a group communication session, (iii) a period of downlink inactivity for the group communication session and (iv) a prediction based on an evaluation of past user behavior and current user behavior at the access terminal. 15. The method of claim 12, wherein the current transmission power level setpoint is set to an artificially low level during the period of reverse link data transmission inactivity. 16. The method of claim 15, wherein the one or more power level adjustment messages instructing the access terminal to increase the current transmission power level setpoint. 17. A method of managing a reverse link transmission power level setpoint during periods of reverse link data inactivity on a reverse link traffic channel in a wireless communications system, comprising: receiving a message at an access network that includes an indication that indicates an access terminal will not be transmitting data on the reverse link traffic channel for a given period of time that is due to a predicted future traffic inactivity characteristic of a state of the access terminal; andtransmitting, prior to the given period of time elapsing, one or more power level adjustment messages in response to the indication in the received message irrespective of a quality level at which the access network receives the received message, the one or more power level adjustment messages instructing the access terminal to decrease a transmission power level setpoint of the access terminal. 18. The method of claim 17, further comprising: receiving a periodic pilot signal from the access terminal on the reverse link traffic channel based on the decreased transmission power level setpoint at least until another message is received at the access network that indicates the access terminal expects to transmit or is transmitting data, the periodic pilot signal not qualifying as a data transmission that ends a period of reverse link data transmission inactivity. 19. The method of claim 17, further comprising: receiving another message to the access network that indicates the access terminal may transmit data on the reverse link traffic channel within a threshold period of time; andtransmitting one or more additional power level adjustment messages in response to the received another message, the one or more additional power level adjustment messages instructing the access terminal to increase a transmission power level setpoint of the access terminal. 20. The method of claim 19, further comprising: receiving data from the access terminal on the reverse link traffic channel from the access network based on the increased transmission power level setpoint. 21. The method of claim 17, further comprising: receiving data at a transmission power level higher than called for by the access terminal's decreased transmission power level setpoint if the data has a high priority. 22. A method of managing a reverse link transmission power level setpoint during periods of reverse link data inactivity on a reverse link traffic channel in a wireless communications system, comprising: receiving, in advance of a potential reverse link data transmission being transmitted to an access network, a message from an access terminal at a first transmission power level based on a current transmission power level setpoint of the access terminal, to request that the current transmission power level setpoint of the access terminal be adjusted to a level sufficient to satisfy a given success rate;transmitting, in response to the received message, one or more power level adjustment messages instructing the access terminal to adjust the current transmission power level setpoint; andreceiving the potential reverse link data transmission at the access network at a second transmission power level based on the adjusted transmission power level setpoint. 23. The method of claim 22, wherein the current transmission power level setpoint is set to an artificially low level during one of the periods of reverse link data transmission inactivity. 24. The method of claim 23, wherein the one or more power level adjustment messages instructing the access terminal to increase the current transmission power level setpoint. 25. An access terminal in a wireless communications system, the access terminal assigned a reverse link traffic channel and configured to transmit data on the reverse link traffic channel at a transmission power level based at least in part on a reverse link transmission power level setpoint, comprising: means for determining, while the access terminal is actively monitoring downlink transmissions associated with a communication session, that no reverse link data transmissions from the access terminal to an access network have occurred on the reverse link traffic channel in more than a threshold period of time, the threshold period of time established at least in part based on one or more criteria associated with expected drift of a transmission power level setpoint of the access terminal during periods of reverse link data transmission inactivity;means for generating a message based on the determination of the means for determining; andmeans for transmitting, while the access terminal continues to monitor downlink transmissions associated with the communication session, the message on the reverse link traffic channel to the access network at a first transmission power level based on a current transmission power level setpoint of the access terminal, the transmitted message sufficient for the access network to measure transmission statistics from which the access network can determine whether to adjust the current transmission power level setpoint of the access terminal. 26. The access terminal of claim 25, further comprising: means for receiving, in response to the message transmission, one or more power level adjustment messages from the access network, the one or more power level adjustment messages each instructing the access terminal to increase or decrease the transmission power level setpoint; andmeans for adjusting the current transmission power level setpoint in accordance with the one or more power level adjustment messages. 27. An access terminal in a wireless communications system, the access terminal assigned a reverse link traffic channel and configured to transmit data on the reverse link traffic channel at a transmission power level based at least in part on a reverse link transmission power level setpoint, comprising: means for entering a state that is characterized by predicted future traffic inactivity on the reverse link traffic channel for the access terminal;means for transmitting a message to an access network that includes an indication that indicates the access terminal will not be transmitting data on the reverse link traffic channel for a given period of time due to the predicted future traffic inactivity of the state;means for receiving, prior to the given period of time elapsing, one or more power level adjustment messages in response to the indication in the transmitted message irrespective of a quality level at which the access network receives the transmitted message, the one or more power level adjustment messages instructing the access terminal to decrease a transmission power level setpoint of the access terminal; andmeans for decreasing the transmission power level setpoint of the access terminal in accordance with the one or more power level adjustment messages. 28. The access terminal of claim 27, further comprising: means for detecting conditions indicative of a possible data transmission from the access terminal within a threshold period of time;means for sending another message to the access network that indicates the access terminal may transmit data on the reverse link traffic channel within the threshold period of time;means for receiving one or more additional power level adjustment messages in response to the transmitted message, the one or more additional power level adjustment messages instructing the access terminal to increase a transmission power level setpoint of the access terminal; andmeans for increasing the transmission power level setpoint of the access terminal in accordance with the one or more power level adjustment messages. 29. An access terminal in a wireless communications system, the access terminal assigned a reverse link traffic channel and configured to transmit data on the reverse link traffic channel at a transmission power level based at least in part on a reverse link transmission power level setpoint, comprising: means for determining, during a period of reverse link data transmission inactivity, whether conditions are present indicative of a potential reverse link data transmission from the access terminal to an access network;means for transmitting, in advance of the potential reverse link data transmission being transmitted to the access network, a message to the access network at a first transmission power level, based on a current transmission power level setpoint, to request that the current transmission power level setpoint of the access terminal be adjusted to a level sufficient to satisfy a given success rate;means for receiving, in response to the transmitted message, one or more power level adjustment messages instructing the access terminal to adjust the current transmission power level setpoint; andmeans for adjusting the current transmission power level setpoint of the access terminal in accordance with the one or more power level adjustment messages. 30. The access terminal of claim 29, further comprising: means for transmitting the potential reverse link data transmission to the access network at a second transmission power level based on the adjusted transmission power level setpoint. 31. The access terminal of claim 29, wherein the current transmission power level setpoint is set to an artificially low level during the period of reverse link data transmission inactivity. 32. An access network in a wireless communications system, the access network configured to assign a reverse link traffic channel to an access terminal and configured to receive data on the reverse link traffic channel at a transmission power level based at least in part on a reverse link transmission power level setpoint, comprising: means for receiving a message at the access network that includes an indication that indicates the access terminal will not be transmitting data on the reverse link traffic channel for a given period of time that is due to a predicted future traffic inactivity characteristic of a state of the access terminal; andmeans for transmitting, prior to the given period of time elapsing, one or more power level adjustment messages in response to the indication in the received message irrespective of a quality level at which the access network receives the received message, the one or more power level adjustment messages instructing the access terminal to decrease a transmission power level setpoint of the access terminal. 33. The access network of claim 32, further comprising: means for receiving another message to the access network that indicates the access terminal may transmit data on the reverse link traffic channel within a threshold period of time; andmeans for transmitting one or more additional power level adjustment messages in response to the received another message, the one or more additional power level adjustment messages instructing the access terminal to increase a transmission power level setpoint of the access terminal. 34. An access network in a wireless communications system, the access network configured to assign a reverse link traffic channel to an access terminal and configured to receive data on the reverse link traffic channel at a transmission power level based at least in part on a reverse link transmission power level setpoint, comprising: means for receiving, in advance of a potential reverse link data transmission being transmitted to the access network, a message from the access terminal at a first transmission power level, based on a current transmission power level setpoint of the access terminal, to request that the current transmission power level setpoint of the access terminal be adjusted to a level sufficient to satisfy a given success rate;means for transmitting, in response to the received message, one or more power level adjustment messages instructing the access terminal to adjust the current transmission power level setpoint; andmeans for receiving the potential reverse link data transmission at the access network at a second transmission power level based on the adjusted transmission power level setpoint. 35. The access network of claim 34, wherein the current transmission power level setpoint is set to an artificially low level during a period of reverse link data transmission inactivity. 36. An access terminal in a wireless communications system, the access terminal assigned a reverse link traffic channel and configured to transmit data on the reverse link traffic channel at a transmission power level based at least in part on a reverse link transmission power level setpoint, comprising: logic configured to determine, while the access terminal is actively monitoring downlink transmissions associated with a communication session, that no reverse link data transmissions from the access terminal to an access network have occurred on the reverse link traffic channel in more than a threshold period of time, the threshold period of time established at least in part based on one or more criteria associated with expected drift of a transmission power level setpoint of the access terminal during periods of reverse link data transmission inactivity;logic configured to generate a message based on the determination of the logic configured to determine; andlogic configured to transmit, while the access terminal continues to monitor downlink transmissions associated with the communication session, the message on the reverse link traffic channel to the access network at a first transmission power level based on a current transmission power level setpoint of the access terminal, the transmitted message sufficient for the access network to measure transmission statistics from which the access network can determine whether to adjust the current transmission power level setpoint of the access terminal. 37. The access terminal of claim 36, further comprising: logic configured to receive, in response to the message transmission, one or more power level adjustment messages from the access network, the one or more power level adjustment messages each instructing the access terminal to increase or decrease the transmission power level setpoint; andlogic configured to adjust the current transmission power level setpoint in accordance with the one or more power level adjustment messages. 38. An access terminal in a wireless communications system, the access terminal assigned a reverse link traffic channel and configured to transmit data on the reverse link traffic channel at a transmission power level based at least in part on a reverse link transmission power level setpoint, comprising: logic configured to enter a state that is characterized by predicted future traffic inactivity on the reverse link traffic channel for the access terminal;logic configured to transmit a message to an access network that includes an indication that indicates the access terminal will not be transmitting data on the reverse link traffic channel for a given period of time due to the predicted future traffic inactivity of the state;logic configured to receive, prior to the given period of time elapsing, one or more power level adjustment messages in response to the indication in the transmitted message irrespective of a quality level at which the access network receives the transmitted message, the one or more power level adjustment messages instructing the access terminal to decrease a transmission power level setpoint of the access terminal; andlogic configured to decrease the transmission power level setpoint of the access terminal in accordance with the one or more power level adjustment messages. 39. The access terminal of claim 38, further comprising: logic configured to detect conditions indicative of a possible data transmission from the access terminal within a threshold period of time;logic configured to send another message to the access network that indicates the access terminal may transmit data on the reverse link traffic channel within the threshold period of time;logic configured to receive one or more additional power level adjustment messages in response to the transmitted message, the one or more additional power level adjustment messages instructing the access terminal to increase a transmission power level setpoint of the access terminal; andlogic configured to increase the transmission power level setpoint of the access terminal in accordance with the one or more power level adjustment messages. 40. An access terminal in a wireless communications system, the access terminal assigned a reverse link traffic channel and configured to transmit data on the reverse link traffic channel at a transmission power level based at least in part on a reverse link transmission power level setpoint, comprising: logic configured to determine, during a period of reverse link data transmission inactivity, whether conditions are present indicative of a potential reverse link data transmission from the access terminal to an access network;logic configured to transmit, in advance of the potential reverse link data transmission being transmitted to the access network, a message to the access network at a first transmission power level, based on a current transmission power level setpoint, to request that the current transmission power level setpoint of the access terminal be adjusted to a level sufficient to satisfy a given success rate;logic configured to receive, in response to the transmitted message, one or more power level adjustment messages instructing the access terminal to adjust the current transmission power level setpoint; andlogic configured to adjust the current transmission power level setpoint of the access terminal in accordance with the one or more power level adjustment messages. 41. The access terminal of claim 40, further comprising: logic configured to transmit the potential reverse link data transmission to the access network at a second transmission power level based on the adjusted transmission power level setpoint. 42. The access terminal of claim 40, wherein the current transmission power level setpoint is set to an artificially low level during the period of reverse link data transmission inactivity. 43. An access network in a wireless communications system, the access network configured to assign a reverse link traffic channel to an access terminal and configured to receive data on the reverse link traffic channel at a transmission power level based at least in part on a reverse link transmission power level setpoint, comprising: logic configured to receive a message at the access network that includes an indication that indicates the access terminal will not be transmitting data on the reverse link traffic channel for a given period of time that is due to a predicted future traffic inactivity characteristic of a state of the access terminal; andlogic configured to transmit, prior to the given period of time elapsing, one or more power level adjustment messages in response to the indication in the received message irrespective of a quality level at which the access network receives the received message, the one or more power level adjustment messages instructing the access terminal to decrease a transmission power level setpoint of the access terminal. 44. The access network of claim 43, further comprising: logic configured to receive another message to the access network that indicates the access terminal may transmit data on the reverse link traffic channel within a threshold period of time; andlogic configured to transmit one or more additional power level adjustment messages in response to the received another message, the one or more additional power level adjustment messages instructing the access terminal to increase a transmission power level setpoint of the access terminal. 45. An access network in a wireless communications system, the access network configured to assign a reverse link traffic channel to an access terminal and configured to receive data on the reverse link traffic channel at a transmission power level based at least in part on a reverse link transmission power level setpoint, comprising: logic configured to receive, in advance of a potential reverse link data transmission being transmitted to the access network, a message from the access terminal at a first transmission power level, based on a current transmission power level setpoint of the access terminal, to request that the current transmission power level setpoint of the access terminal be adjusted to a level sufficient to satisfy a given success rate;logic configured to transmit, in response to the received message, one or more power level adjustment messages instructing the access terminal to adjust the current transmission power level setpoint; andlogic configured to receive the potential reverse link data transmission at the access network at a second transmission power level based on the adjusted transmission power level setpoint. 46. The access network of claim 45, wherein the current transmission power level setpoint is set to an artificially low level during a period of reverse link data transmission inactivity. 47. A non-transitory computer-readable medium comprising instructions, which, when executed by an access terminal in a wireless communications system, the access terminal assigned a reverse link traffic channel and configured to transmit data on the reverse link traffic channel at a transmission power level based at least in part on a reverse link transmission power level setpoint, cause the access terminal to perform operations, the instructions comprising: program code to determine, while the access terminal is actively monitoring downlink transmissions associated with a communication session, that no reverse link data transmissions from the access terminal to an access network have occurred on the reverse link traffic channel in more than a threshold period of time, the threshold period of time established at least in part based on one or more criteria associated with expected drift of a transmission power level setpoint of the access terminal during periods of reverse link data transmission inactivity;program code to generate a message based on the determination of the program code to determine; andprogram code to transmit, while the access terminal continues to monitor downlink transmissions associated with the communication session, the message on the reverse link traffic channel to the access network at a first transmission power level based on a current transmission power level setpoint of the access terminal, the transmitted message sufficient for the access network to measure transmission statistics from which the access network can determine whether to adjust the current transmission power level setpoint of the access terminal. 48. The non-transitory computer-readable medium of claim 47, further comprising: program code to receive, in response to the message transmission, one or more power level adjustment messages from the access network, the one or more power level adjustment messages each instructing the access terminal to increase or decrease the transmission power level setpoint; andprogram code to adjust the current transmission power level setpoint in accordance with the one or more power level adjustment messages. 49. A non-transitory computer-readable medium comprising instructions, which, when executed by an access terminal in a wireless communications system, the access terminal assigned a reverse link traffic channel and configured to transmit data on the reverse link traffic channel at a transmission power level based at least in part on a reverse link transmission power level setpoint, cause the access terminal to perform operations, the instructions comprising: program code to enter a state that is characterized by predicted future traffic inactivity on the reverse link traffic channel for the access terminal;program code to transmit a message to an access network that includes an indication that indicates the access terminal will not be transmitting data on the reverse link traffic channel for a given period of time due to the predicted future traffic inactivity of the state;program code to receive, prior to the given period of time elapsing, one or more power level adjustment messages in response to the indication in the transmitted message irrespective of a quality level at which the access network receives the transmitted message, the one or more power level adjustment messages instructing the access terminal to decrease a transmission power level setpoint of the access terminal; andprogram code to decrease the transmission power level setpoint of the access terminal in accordance with the one or more power level adjustment messages. 50. The non-transitory computer-readable medium of claim 49, further comprising: program code to detect conditions indicative of a possible data transmission from the access terminal within a threshold period of time;program code to send another message to the access network that indicates the access terminal may transmit data on the reverse link traffic channel within the threshold period of time;program code to receive one or more additional power level adjustment messages in response to the transmitted message, the one or more additional power level adjustment messages instructing the access terminal to increase a transmission power level setpoint of the access terminal; andprogram code to increase the transmission power level setpoint of the access terminal in accordance with the one or more power level adjustment messages. 51. A non-transitory computer-readable medium comprising instructions, which, when executed by an access terminal in a wireless communications system, the access terminal assigned a reverse link traffic channel and configured to transmit data on the reverse link traffic channel at a transmission power level based at least in part on a reverse link transmission power level setpoint, cause the access terminal to perform operations, the instructions comprising: program code to determine, during a period of reverse link data transmission inactivity, whether conditions are present indicative of a potential reverse link data transmission from the access terminal to an access network;program code to transmit, in advance of the potential reverse link data transmission being transmitted to the access network, a message to the access network at a first transmission power level, based on a current transmission power level setpoint, to request that the current transmission power level setpoint of the access terminal be adjusted to a level sufficient to satisfy a given success rate;program code to receive, in response to the transmitted message, one or more power level adjustment messages instructing the access terminal to adjust the current transmission power level setpoint; andprogram code to adjust the current transmission power level setpoint of the access terminal in accordance with the one or more power level adjustment messages. 52. The non-transitory computer-readable medium of claim 51, further comprising: program code to transmit the potential reverse link data transmission to the access network at a second transmission power level based on the adjusted transmission power level setpoint. 53. The non-transitory computer-readable medium of claim 52, wherein the current transmission power level setpoint is set to an artificially low level during the period of reverse link data transmission inactivity. 54. A non-transitory computer-readable medium comprising instructions, which, when executed by an access network in a wireless communications system, the access network configured to assign a reverse link traffic channel to an access terminal and configured to receive data on the reverse link traffic channel at a transmission power level based at least in part on a reverse link transmission power level setpoint, cause the access network to perform operations, the instructions comprising: program code to receive a message at the access network that indicates the access terminal will not be transmitting data on the reverse link traffic channel for a given period of time that is due to a predicted future traffic inactivity characteristic of a state of the access terminal; andprogram code to transmit, prior to the given period of time elapsing, one or more power level adjustment messages in response to the indication in the received message irrespective of a quality level at which the access network receives the received message, the one or more power level adjustment messages instructing the access terminal to decrease a transmission power level setpoint of the access terminal. 55. The non-transitory computer-readable medium of claim 54, further comprising: program code to receive another message to the access network that indicates the access terminal may transmit data on the reverse link traffic channel within a threshold period of time; andprogram code to transmit one or more additional power level adjustment messages in response to the received another message, the one or more additional power level adjustment messages instructing the access terminal to increase a transmission power level setpoint of the access terminal. 56. A non-transitory computer-readable medium comprising instructions, which, when executed by an access network in a wireless communications system, the access network configured to assign a reverse link traffic channel to an access terminal and configured to receive data on the reverse link traffic channel at a transmission power level based at least in part on a reverse link transmission power level setpoint, cause the access network to perform operations, the instructions comprising: program code to receive, in advance of a potential reverse link data transmission being transmitted to the access network, a message from the access terminal at a first transmission power level, based on a current transmission power level setpoint of the access terminal, to request that the current transmission power level setpoint of the access terminal be adjusted to a level sufficient to satisfy a given success rate;program code to transmit, in response to the received message, one or more power level adjustment messages instructing the access terminal to adjust the current transmission power level setpoint; andprogram code to receive the potential reverse link data transmission at the access network at a second transmission power level based on the adjusted transmission power level setpoint. 57. The non-transitory computer-readable medium of claim 56, wherein the current transmission power level setpoint is set to an artificially low level during a period of reverse link data transmission inactivity.