Slow MAC-e for autonomous transmission in high speed uplink packet access (HSUPA) along with service specific transmission time control

A memory embodying a computer program executable by a processor for performing actions directed toward changing a transmission interval, said actions comprising:

• determining a virtual transmission time interval for a medium access control entity;
• checking to determine whether the medium access control entity is transmitting data packets in a current air interface transmission time interval;
• and
• for the case where it is determined that the medium access control entity is not transmitting in the current air interface transmission time interval, transmitting a next data packet after a predetermined period associated with the virtual transmission time interval has elapsed, wherein the next data packet comprises at least one protocol data unit and the virtual transmission time interval is an integer multiple of the current air interface transmission time interval.

An apparatus comprising:

• a memory adapted to store computer program instructions and a virtual transmission time interval;
• a wireless transceiver;
• a processor adapted to:
• check to determine whether the apparatus is transmitting data packets in a current air interface transmission time interval;
• and
• for the case where it is determined that the apparatus is not transmitting in the current air interface transmission time interval, to cause the transmitter to transmit a next data packet after a predetermined period associated with the virtual transmission time interval has elapsed, wherein the next data packet comprises at least one protocol data unit and the virtual transmission time interval is an integer multiple of the current air interface transmission time interval.

An apparatus comprising:

• means for determining a virtual transmission time interval for a medium access control entity;
• means for checking to determine whether the medium access control entity is transmitting data packets in a current air interface transmission time interval;
• and
• for the case where it is determined that the medium access control entity is not transmitting in the current air interface transmission time interval, means for transmitting a next data packet after a predetermined period associated with the virtual transmission time interval has elapsed, wherein the apparatus comprises a mobile station, and the virtual transmission time interval is an integer multiple of the current air interface transmission time interval.