CELLULAR VEHICLE-TO-EVERYTHING DESIGN PRINCIPLES
Methods, systems, and devices for wireless communication are described. A 5G device may decode a control channel transmission of a safety message in a vehicle-to-everything system during a first portion of a time period. The 5G device may identify, based at least in part on the decoding, a pool of resource blocks (RBs) that are available for the time period. The 5G device may select a subset of RBs from the available pool of RBs for a transmission during a second portion of the time period.
1 . A method for wireless communication, comprising:
identifying a shared radio frequency spectrum band that is shared between a first device that is configured to communicate using a first radio access technology (RAT) and a second device that is configured to communicate using a second RAT different from the first RAT;
identifying, by the second device, a first transmission opportunity (TxOP) duration associated with the first RAT; and
selecting, based at least in part on the first TxOP duration, a second TxOP duration for communications on the shared radio frequency spectrum band, wherein the second TxOP duration is smaller than the first TxOP duration.
2 . The method of claim 1 , further comprising:
performing one or more communications on the shared radio frequency spectrum band using the second TxOP.
3 . The method of claim 1 , wherein the first RAT comprises a vehicle-to-everything (V2X) RAT and the second RAT comprises one or more of a Wi-Fi RAT, a long term evolution (LTE) license assisted access (LTE-LAA) RAT, an enhanced LTE-LAA RAT, and a multi-fire RAT.
4 . The method of claim 1 , further comprising:
transmitting, by the second device, a transmission associated with the second TxOP duration on one or more non-basic safety message (BSM) sub-bands.
5 . The method of claim 1 , further comprising:
identifying, by the second device, that a transmission associated with the first TxOP duration has a higher transmission priority than a transmission in by the second device, and wherein selecting the second TxOP duration for communications on the shared radio frequency spectrum band comprises selecting, based at least in part on identifying that the transmission associated with the first TxOP duration has a higher transmission priority, the second TxOP duration for communications on the shared radio frequency spectrum band.
6 . An apparatus for wireless communication, comprising:
a processor;
memory coupled with the processor; and
instructions stored in the memory and operable, when executed by the processor, to cause the apparatus to:
identify a shared radio frequency spectrum band that is shared between a first device that is configured to communicate using a first radio access technology (RAT) and a second device that is configured to communicate using a second RAT different from the first RAT;
identify, by the second device, a first transmission opportunity (TxOP) duration associated with the first RAT; and
select, based at least in part on the first TxOP duration, a second TxOP duration for communications on the shared radio frequency spectrum band, wherein the second TxOP duration is smaller than the first TxOP duration.
7 . The apparatus of claim 6 , wherein the instructions are further configured, when executed by the processor, to cause the apparatus to:
perform one or more communications on the shared radio frequency spectrum band using the second TxOP.
8 . The apparatus of claim 6 , wherein the first RAT comprises a vehicle-to-everything (V2X) RAT and the second RAT comprises one or more of a Wi-Fi RAT, a long term evolution (LTE) license assisted access (LTE-LAA) RAT, an enhanced LTE-LAA RAT, and a multi-fire RAT.
9 . The apparatus of claim 6 , wherein the instructions are further configured, when executed by the processor, to cause the apparatus to:
transmit, by the second device, a transmission associated with the second TxOP duration on one or more non-basic safety message (BSM) sub-bands.
10 . The apparatus of claim 6 , wherein the instructions are further configured, when executed by the processor, to cause the apparatus to:
identify, by the second device, that a transmission associated with the first TxOP duration has a higher transmission priority than a transmission in by the second device, and wherein the instructions configured, when executed by the processor, to cause the apparatus to select the second TxOP duration for communications on the shared radio frequency spectrum band comprise instructions, when executed by the processor, to cause the apparatus to select, based at least in part on identification that the transmission associated with the first TxOP duration has a higher transmission priority, the second TxOP duration for communications on the shared radio frequency spectrum band.
11 . An apparatus for wireless communication, comprising:
means for identifying a shared radio frequency spectrum band that is shared between a first device that is configured to communicate using a first radio access technology (RAT) and a second device that is configured to communicate using a second RAT different from the first RAT;
means for identifying, by the second device, a first transmission opportunity (TxOP) duration associated with the first RAT; and
means for selecting, based at least in part on the first TxOP duration, a second TxOP duration for communications on the shared radio frequency spectrum band, wherein the second TxOP duration is smaller than the first TxOP duration.
12 . The method of claim 11 , further comprising:
means for performing one or more communications on the shared radio frequency spectrum band using the second TxOP.
13 . The method of claim 11 , wherein the first RAT comprises a vehicle-to-everything (V2X) RAT and the second RAT comprises one or more of a Wi-Fi RAT, a long term evolution (LTE) license assisted access (LTE-LAA) RAT, an enhanced LTE-LAA RAT, and a multi-fire RAT.
14 . The method of claim 11 , further comprising:
means for transmitting, by the second device, a transmission associated with the second TxOP duration on one or more non-basic safety message (BSM) sub-bands.
15 . The method of claim 11 , further comprising:
means for identifying, by the second device, that a transmission associated with the first TxOP duration has a higher transmission priority than a transmission in by the second device, and wherein the means for selecting the second TxOP duration for communications on the shared radio frequency spectrum band comprises means for selecting, based at least in part on identifying that the transmission associated with the first TxOP duration has a higher transmission priority, the second TxOP duration for communications on the shared radio frequency spectrum band.