Methods and appratus for handling dependencies for xr traffic in wireless systems based on configuration of lch restricted to handle dependencies

A method implemented by a wireless transmit/receive unit (WTRU), the method comprising:

• receiving, from a network (NW) entity, configuration information for a first one or more logical channels (LCHs) and a second one or more LCHs, the second one or more LCHs including one or more LCHs that are restricted to handle dependency between protocol data units (PDUs);
• receiving, from an extended reality (XR) application, a first set of PDUs and a second set of PDUs;
• determining dependency requirements for the first set of PDUs and the second set of PDUs based on at least one of arrival times or a data type;
• determining a first priority associated with the first one or more LCHs and a second priority associated with the second one or more LCHs;
• and
• in response to the second priority of the second one or more LCHs meeting the dependency requirements for the first set of PDUs and the second set of PDUs, mapping the first set of PDUs and the second set of PDUs to the second one or more LCHs.