ENHANCED VEHICLE-TO-EVERYTHING RADIO ACCESS TECHNOLOGY MIGRATION
Methods, systems, and devices for wireless communication are described. A user equipment (UE) that is configured to transmit a message to a neighboring UE via multiple formats, identify a service parameter indicative of a format to be used for the message. The UE may convey information indicating the service parameter from a first layer of the UE to a second layer of the UE, wherein the first layer is an upper layer with respect to the second layer. The UE may generate, by the second layer and based at least in part on the information, the message in the format for communicating with the neighboring UE. Other aspects, embodiments, and features are claimed and described.
1 . (canceled)
2 . An apparatus for wireless communications at a user equipment (UE), comprising:
a processor;
memory coupled with the processor; and
instructions stored in the memory, wherein the instructions are executable by the processor to:
convey information indicating a service parameter indicative of a format to be used for a message to a neighboring UE;
generate, based at least in part on the information indicating the service parameter indicative of the format to be used for the message to the neighboring UE, the message in the format; and
transmit the message to the neighboring UE.
3 . The apparatus of claim 2 , wherein the message is associated with a service and wherein the instructions are executable by the processor to:
select a service identifier associated with the service.
4 . the apparatus of claim 3 , wherein the association between the service parameter and the service identifier is configured by the UE.
5 . The apparatus of claim 2 , wherein the instructions are executable by the processor to:
classify the message based at least in part on a service identifier.
6 . The apparatus of claim 2 , wherein the instructions are executable by the processor to:
include in the message a flag to indicate the service parameter.
7 . the apparatus of claim 6 , wherein the instructions executable by the processor to include the flag comprise instructions executable by the processor to:
determine whether to include the flag in the message based at least in part on a listing of service identifiers associated with the service parameter.
8 . The apparatus of claim 2 , wherein the instructions are executable by the processor to:
generate the message as a version of multiple different versions of vehicle-to-everything (V2X) messages.
9 . The apparatus of claim 2 , wherein the instructions are executable by the processor to:
communicate a safety message associated with vehicle-based operations.
10 . The apparatus of claim 2 , wherein the instructions are executable by the processor to:
determine that the UE supports communicating using a first format and a second format, the first format being a legacy format with respect to the second format;
receive one or more messages from the neighboring UE;
determine, based at least in part on the one or more messages, that the neighboring UE supports communications using the second format; and
select the second format for communications with the neighboring UE.
11 . The apparatus of claim 10 , wherein the instructions are executable by the processor to:
decode, for each received message, a scheduling assignment to determine that the neighboring UE supports communications using the second format.
12 . The apparatus of claim 10 , wherein the instructions are executable by the processor to:
decode, for each received message, a header portion of the message to determine that the neighboring UE supports communications using the second format.
13 . The apparatus of claim 12 , wherein the header portion of the message comprises a medium access control (MAC) header portion, a radio link control (RLC) header portion, or a packet data convergence protocol (PDCP) header portion.
14 . The apparatus of claim 13 , wherein the one or more messages are associated with safety messages configured according to the first format.
15 . The apparatus of claim 13 , wherein the one or more messages comprise a service identifier, the service identifier conveying an indication that the neighboring UE supports communications using the second format.
16 . The apparatus of claim 2 , wherein the instructions are executable by the processor to:
convey the information indicating the service parameter from a first layer of the UE to a second layer of the UE, the first layer being an upper layer with respect to the second layer.
17 . An apparatus for wireless communications at a user equipment (UE), comprising:
a processor;
memory coupled with the processor; and
instructions stored in the memory, wherein the instructions are executable by the processor to:
convey information indicating one or more parameters indicative of a radio access technology (RAT) to be used for a message to a neighboring UE; and
instantiate, based at least in part on the information indicating the one or more parameters indicative of the RAT to be used for the message to the neighboring UE, a channel for communications with the neighboring UE according to the RAT.
18 . The apparatus of claim 17 , wherein the instructions are executable by the processor to:
select the one or more parameters indicative of the RAT to be used for the message based at least in part on the UE being configured to transmit the message to the neighboring UE via multiple protocols.
19 . The apparatus of claim 17 , wherein the instructions are executable by the processor to:
identify one or more of a quality of service (QoS) metric, a proximity service (ProSe) per-packet priority (PPPP), a service identifier, or an identifier associated with a layer two identifier (L2ID), associated with the communications with the neighboring UE, wherein the one or more parameters comprise one or more of the QoS metric, the PPPP, the service identifier, or the L2ID.
20 . The apparatus of claim 19 , wherein the instructions are executable by the processor to:
configure each packet of one or more packets to indicate one or more of the QoS metric, the PPPP, the service identifier, or the L2ID, to a second layer that is a lower layer of the UE.
21 . The apparatus of claim 19 , wherein the QoS metric is associated with a vehicle-to-everything (V2X) QoS class identifier (VQI).
22 . The apparatus of claim 19 , wherein the instructions are executable by the processor to:
configure a virtual bearer to use for communications with the neighboring UE according to the one or more parameters.
23 . The apparatus of claim 22 , wherein the virtual bearer comprises at least one of a logical bearer, or a radio bearer, or a long term evolution (LTE) vehicle-to-everything (V2X) bearer, or a set of next generation new radio (NR) bearers that are generated dynamically by a lower layer of the UE based on the one or more parameters selected by an upper layer, or a combination thereof.
24 . The apparatus of claim 22 , wherein the virtual bearer is configured based on a message received from the neighboring UE.
25 . The apparatus of claim 24 , wherein the instructions are executable by the processor to:
trigger, based on receipt of the message, an activation of an application associated with the virtual bearer.
26 . The apparatus of claim 17 , wherein the communications with the neighboring UE comprise one or more of a supported broadcast traffic function, a safety message function, a scheduling assignment, a carrier aggregation, a modulation and coding scheme (MCS), or a transmission time interval.
27 . The apparatus of claim 17 , wherein the communications with the neighboring UE comprise a message associated with vehicle-based operations.
28 . The apparatus of claim 17 , wherein the instructions are executable by the processor to:
access a preconfigured rule, a rule received from a network entity, or combinations thereof, to select the one or more parameters.
29 . The apparatus of claim 17 , wherein the instructions are executable by the processor to:
instantiate a long term evolution (LTE) channel for communications with the neighboring UE by default; and
generate a next generation new radio (NR) channel dynamically based at least in part on receipt of a message from the neighboring UE triggering the generation of the NR channel.
30 . The apparatus of claim 17 , wherein the instructions are executable by the processor to:
convey the information indicating the one or more parameters from a first layer of the UE to a second layer of the UE, the first layer being an upper layer with respect to the second layer.