Procedures for enabling simultaneous transmission of different types
Systems, methods, and devices for enabling simultaneous transmission of different types of transmission protocols. A device such as a wireless transmit receive unit (WTRU) may receive configuration information and receive a data packet from an upper layer of a protocol stack operating on the WTRU. The WTRU may then determine a transmission type for the data packet at a first time based on the configuration information and a condition. The WTRU may then transmit the data packet using the determined transmission type. The configuration information may include decision criteria associated with determining the transmission type and a set of logical channels that are associated with data properties. The transmission type may be one of a network scheduled mode, WTRU autonomously scheduled mode, LTE, NR, unicast, groupcast, or broadcast.
1. A method implemented by a wireless transmit receive unit (WTRU), the method comprising:
receiving configuration information, wherein the configuration information comprises a channel-busy-ratio (CBR) threshold related to an association between a logical channel (LCH) and a transmission mode;
measuring a CBR;
determining that the measured CBR crosses the CBR threshold;
triggering a change of the association between the LCH and the transmission mode in response to determining that the measured CBR crosses the CBR threshold; and
sending a buffer status report (BSR) based on the change in the association between the LCH and the transmission mode.
2. The method of claim 1 , further comprising:
selecting resources for the LCH in response to determining that the measured CBR crosses the CBR threshold; and
transmitting a message on the selected resources.
3. The method of claim 1 , wherein the transmission mode is associated with a network scheduled mode or a WTRU autonomous mode.
4. The method of claim 1 , wherein the transmission mode is associated with an indication of unicast, groupcast, or broadcast.
5. The method of claim 1 , wherein the transmission mode is associated with a radio access technology (RAT).
6. The method of claim 5 , wherein the RAT is LTE or NR.
7. A wireless transmit receive unit (WTRU), the WTRU comprising:
a transceiver operatively coupled to a processor, the receiver configured to receive configuration information, wherein the configuration information comprises a channel-busy-ratio (CBR) threshold related to an association between a logical channel (LCH) and a transmission mode;
the transceiver configured to measure a CBR;
the processor configured to determine that the measured CBR crosses the CBR threshold;
the transceiver and/or the processor configured to trigger a change of the association between the LCH and the transmission mode in response to the processor determining that the measured CBR crosses the CBR threshold; and
the transceiver configured to send a buffer status report (BSR) based on the change in the association between the LCH and the transmission mode.
8. The WTRU of claim 7 , wherein the transceiver and processor are further configured to:
select resources for the LCH based on the measured CBR exceeding or falling below the CBR threshold; and
transmit a message on the selected resources.
9. The WTRU of claim 7 , wherein the transmission mode is associated with a network scheduled mode or a WTRU autonomous mode.
10. The WTRU of claim 7 , wherein the transmission mode is associated with an indication of unicast, groupcast, or broadcast.
11. The WTRU of claim 7 , wherein the transmission mode is associated with a radio access technology (RAT).
12. The WTRU of claim 11 , wherein the RAT is LTE or NR.