Standalone L2 processing and control architecture in 5G flexible RAT systems
A wireless transmit/receive unit (WTRU) and corresponding method is disclosed. The WTRU is in communication with a wireless communication network, the WTRU comprising: a memory; a receiver, the receiver configured at least to: receive a configuration, the configuration including one or more characteristics for one or more transmission modes (TMs) of the WTRU; a processor, the processor configured at least to: select, dynamically, at least one TM of the one or more TMs for a transmission of an uplink data unit, the dynamic selection being based on one or more data transfer requirements and the one or more TM characteristics; identify at least one transport channel associated with the at least one TM; and map the uplink data unit to the at least one transport channel; and a transmitter, the transmitter configured at least to: send the transmission of the uplink data unit to one or more devices of the wireless communication network.
1. A wireless transmit/receive unit (WTRU) comprising:
a processor configured to:
receive configuration information associated with a plurality of logical channels, wherein the configuration information comprises information indicating respective requirements for each of the plurality of logical channels;
receive downlink control information (DCI) comprising an indication of physical channel resources, wherein at least one of the physical channel resources is associated with a transmission duration; and
select one or more of the plurality of logical channels based on one or more of the respective requirements for each of the one or more of the plurality of logical channels being satisfied by the transmission duration; and
transmit data associated with the selected one or more of the plurality of logical channels utilizing the at least one of the physical channel resources.
2. The WTRU of claim 1 , wherein the at least one of the physical channel resources is associated with at least one of: a bandwidth, a symbol rate, a coding characteristic, a set of supported modulation and coding schemes (MCS), or a numerology.
3. The WTRU of claim 1 , wherein the transmission duration is less than or equal to 1 millisecond (ms).
4. The WTRU of claim 2 , wherein the numerology comprises a subcarrier spacing or an associated symbol duration.
5. The WTRU of claim 1 , wherein the processor is further configured to select the one or more of the plurality of logical channels pursuant to a logical channel prioritization (LCP) procedure that defines the one or more respective requirements for each of the plurality of logical channels.
6. The WTRU of claim 1 , wherein the respective requirements for each of the plurality of logical channels comprise at least one of a low latency service requirement or an ultra-reliable service requirement.
7. The WTRU of claim 1 ,
wherein the at least one of the physical channel resources is associated with a subcarrier spacing, and
wherein the processor configured to select the one or more of the plurality of logical channels is further configured to select the one or more of the plurality of logical channels based on one or more of the respective requirements for each of the one or more of the plurality of logical channels being satisfied by the subcarrier spacing.
8. A method performed by a wireless transmit/receive unit (WTRU), the method comprising:
receiving configuration associated with a plurality of logical channels, wherein the configuration information comprises information indicating respective requirements for each of the plurality of logical channels;
receiving downlink control information (DCI) comprising an indication of physical channel resources, wherein at least one of the physical channel resources is associated with a transmission duration; and
selecting one or more of the plurality of logical channels based on one or more of the respective requirements for each of the one or more of the plurality of logical channels being satisfied by the transmission duration; and
transmitting data associated with the selected one or more of the plurality of logical channels utilizing the at least one of the physical channel resources.
9. The method of claim 8 , wherein at least one of the wireless physical channel resources is associated with at least one of: a bandwidth, a symbol rate, a coding characteristic, a set of supported modulation and coding schemes (MCS), or a numerology.
10. The method of claim 9 , wherein the transmission duration is less than or equal to 1 millisecond (ms).
11. The method of claim 9 , wherein the numerology includes a subcarrier spacing or an associated symbol duration.
12. The method of claim 9 , wherein selecting the one or more of the plurality of logical channels comprises selecting the one or more of the plurality of channels pursuant to a logical channel prioritization (LCP) procedure that defines the respective requirements for each of the plurality of logical channels.
13. The method of claim 8 , wherein the respective requirements for each of the plurality of logical channels comprise at least one of low latency service requirement or an ultra-reliable service requirement.
14. The method of claim 8 ,
wherein the at least one of the physical channel resources is associated with a subcarrier spacing, and
wherein selecting the one or more of the plurality of logical channels comprises selecting the one or more of the plurality of logical channels based on one or more of the respective requirements for each of the one or more of the plurality of logical channels being satisfied by the subcarrier spacing.