Method and apparatus for signaling the release of a persistent resource

A wireless transmit receive unit (WTRU) comprising a processor and memory, the WTRU configured, at least in part, to:

• receive a configuration for persistent resource scheduling in a radio resource control (RRC) message sent from an evolved Node B (eNB), the configuration for persistent resource scheduling comprising an indication of a periodicity of a persistent resource allocation;
• receive a first physical downlink control channel (PDCCH) transmission applicable to the persistent resource allocation from the eNB, wherein the first PDCCH transmission triggers the WTRU to activate the persistent resource allocation;
• and
• receive a reconfiguration of the persistent resource allocation via a second PDCCH transmission from the eNB, wherein the reconfiguration of the persistent resource allocation changes resources and transport format used for the persistent resource allocation without affecting the periodicity of the persistent resource allocation.

An evolved Node B (eNB) comprising a processor and memory, the eNB configured, at least in part, to:

• transmit, to a wireless transmit receive unit (WTRU), a configuration for persistent resource scheduling in a radio resource control (RRC) message, the configuration for persistent resource scheduling comprising an indication of a periodicity of a persistent resource allocation to be used by the WTRU;
• transmit a first physical downlink control channel (PDCCH) transmission applicable to the persistent resource allocation to the WTRU, wherein the first PDCCH transmission triggers the WTRU to activate the persistent resource allocation;
• and
• transmit a reconfiguration of the persistent resource allocation via a second PDCCH transmission to the WTRU, wherein the reconfiguration of the persistent resource allocation changes resources and transport format used for the persistent resource allocation without affecting the periodicity of the persistent resource allocation.