Coexistence of multiple air interface side-links on a channel
Various arrangements for using multiple air interfaces on a frequency channel for side-link communications are presented. Side-link communications may be performed using the first air interface during only a first time-window of a system resource pool while side-link communications may be performed using a second air interface during a second time-window of the system resource pool.
1. A vehicle system that uses multiple air interfaces for side-link communications, the vehicle system comprising:
a first air interface component that performs side-link communications using a first air interface;
a second air interface component that performs side-link communications using a second air interface;
one or more processors, configured to:
schedule a first side-link communication using the first air interface component and the first air interface during a first time-window on a frequency channel, wherein:
a system resource pool is allocated among multiple different air interfaces such that the first air interface is assigned a first resource pool having the first time-window of the frequency channel;
the second air interface has a second resource pool having second time-window of the frequency channel; and
the first resource pool and the second resource pool being part of the system resource pool; and
cause the first air interface component to perform the scheduled first side-link communication during the first time-window on the frequency channel, wherein the first side-link communication comprises a basic safety message (BSM) that comprises one or more categories of data selected from the group consisting of: vehicle size data, position data, speed data, heading data, acceleration data, and brake system status data.
2. The vehicle system of claim 1 , wherein the one or more processors is further configured to receive a resource pool allocation message that defines the first time-window and the second time-window.
3. The vehicle system of claim 1 , further comprising a vehicle system interface, wherein vehicle data for the BSM is obtained by the one or more processors from the vehicle systems interface.
4. The vehicle system of claim 1 , wherein the one or more processors is further configured to schedule a second side-link communication using the second air interface component and the second air interface during the second time-window on the frequency channel.
5. The vehicle system of claim 4 , wherein the one or more processors is further configured to cause the second air interface component to perform the scheduled second side-link communication during the second time-window on the frequency channel.
6. The vehicle system of claim 1 , wherein the first air interface uses a first subcarrier spacing and the second air interface uses a second subcarrier spacing that is different from the first subcarrier spacing.
7. The vehicle system of claim 1 , wherein the first air interface is a 5G New Radio (NR) air interface.
8. The vehicle system of claim 1 , wherein the first air interface is a 4G Long Term Evolution (LTE) air interface.
9. A method, comprising:
scheduling, by a vehicle processing system, a first side-link communication using a first air interface component and a first air interface during a first time-window on a frequency channel, wherein:
a system resource pool is allocated among multiple different air interfaces such that the first air interface is assigned a first resource pool having the first time-window of the frequency channel;
a second air interface has a second resource pool having second time-window of the frequency channel;
the first resource pool and the second resource pool being part of the system resource pool; and
the vehicle processing system uses a first air interface component that performs side-link communications using a first air interface and a second air interface component that performs side-link communications using a second air interface; and
transmitting, by the first air interface component, the scheduled first side-link communication during the first time-window on the frequency channel, wherein the first side-link communication comprises a basic safety message (BSM) that comprises one or more categories of data selected from the group consisting of: vehicle size data, position data, speed data, heading data, acceleration data, and brake system status data.
10. The method of claim 9 , further comprising, receiving, by the vehicle processing system, a resource pool allocation message that defines the first time-window and the second time-window.
11. The method of claim 9 , wherein the first side-link communication transmits vehicle data and the vehicle data for the BSM is obtained by a vehicle system interface of a vehicle in which the vehicle processing system is installed.
12. The method of claim 9 , further comprising a second side-link communication using the second air interface component and the second air interface during the second time-window on the frequency channel.
13. The method of claim 12 , further comprising transmitting, by the second air interface component, the scheduled second side-link communication during the second time-window on the frequency channel.
14. The method of claim 9 , wherein the first air interface uses a first subcarrier spacing and the second air interface uses a second subcarrier spacing that is different from the first subcarrier spacing.
15. The method of claim 9 , wherein the first air interface is a 5G New Radio (NR) air interface.
16. The method of claim 9 , wherein the first air interface is a 4G Long Term Evolution (LTE) air interface.
17. A non-transitory processor-readable medium, comprising processor-readable instructions configured to cause one or more processors of a vehicle processing system to:
schedule a first side-link communication using a first air interface component and a first air interface during a first time-window on a frequency channel, wherein:
a system resource pool is allocated among multiple different air interface such that the first air interface is assigned a first resource pool having the first time-window of the frequency channel;
a second air interface has a second resource pool having second time-window of the frequency channel;
the first resource pool and the second resource pool being part of the system resource pool; and
the vehicle processing system uses a first air interface component that performs side-link communications using a first air interface and a second air interface component that performs side-link communications using a second air interface; and
cause the first air interface component to transmit the scheduled first side-link communication during the first time-window on the frequency channel, wherein the first side-link communication comprises a vehicle data message that comprises one or more categories of data selected from the group consisting of: vehicle size data, position data, speed data, heading data, acceleration data, and brake system status data.