Jitter monitoring based on pdu set level buffers and importance levels

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

• receiving downlink traffic associated with a protocol data unit (PDU) set;
• storing a portion of the downlink traffic in a playout buffer to reduce jitter associated with the PDU set, wherein the playout buffer is configured to manage data at a PDU set level;
• performing a jitter measurement associated with the downlink traffic;
• reporting a result of the jitter measurement to a network device;
• receiving an indication to change a parameter of the playout buffer;
• and
• changing the playout buffer based on the indication.

A network device associated with a wireless communication network, the network device comprising:

• a processor configured to:
• receive uplink traffic associated with a protocol data unit (PDU) set;
• store a portion of the uplink traffic in a playout buffer to reduce jitter associated with the PDU set, wherein the playout buffer is configured to store data at a PDU set level;
• perform a jitter measurement associated with the uplink traffic;
• report a result of the jitter measurement to a second network device;
• receive an indication to change a parameter of the playout buffer;
• and
• change the playout buffer based on the indication.