Method and apparatus for contention-based uplink data transmission

摘要

A method and apparatus for a wireless transmit receive unit (WTRU) to use a contention-based uplink communications channel, applies a rule-based restriction of access to the contention-based uplink channel that attempts to use at least one contention-free uplink channel allocation for uplink transmissions on a condition that at least one contention-free uplink channel allocation has been granted. BUFFER CONTAINS BOTH A RACH PREAMBLE, AND UL DATA WITH 601 BSR AWAITING CB GRANT CB UL GRANT RECEIVED AND 602 TRIGGERED SR CANCEL RACH PREAMBLE IN SUB-FRAME X 603 SEND DATA AND BSR ON 604 CB-PUSCH ON SUB-FRAME X BUFFER CONTAINS BOTH A RACH PREAMBLE, AND UL DATA WITH 601 BSR AWAITING CB GRANT CB UL GRANT RECEIVED AND 602 TRIGGERED SR SEND RACH PREAMBLE IN SUB-FRAME X CANCEL CB-PUSCH FOR 614 SUB-FRAME X