System and method for supporting concurrent deployment of multiple transmission time intervals for uplink transmissions by user equipment in a non-dedicated channel state

摘要

A random access procedure for UEs in Cell_FACH or another suitable non-DCH state, which enables concurrent deployment of 2 ms and 10 ms TTIs for uplink transmissions on the E-DCH. In some examples, the procedure may further enable utilization of a Rel-99 PRACH transmission by UEs in the Cell_FACH or other suitable non-DCH state.

主权项

1. A method of wireless communication operable at a user equipment, the method comprising:
selecting a scrambling code adapted to indicate that the user equipment is capable of more than one resource assignment from among a plurality of available resource assignments; selecting a preferred resource from at least a first preferred E-DCH resource comprising a 10 ms transmission time interval and a second preferred E-DCH resource comprising a 2 ms transmission time interval, the selecting the preferred resource comprising:
selecting, as the preferred resource, the first preferred E-DCH resource comprising the 10 ms transmission time interval if a function of an initial uplink transmit power utilized on a random access preamble transmission is greater than a power threshold; andselecting, as the preferred resource, the second preferred E-DCH resource comprising the 2 ms transmission time interval if the function of the initial uplink transmit power utilized on the random access preamble transmission is not greater than the power threshold; and transmitting data corresponding to an access attempt utilizing the selected scrambling code, wherein the data further indicates the selected preferred resource.