Coexistence of Multiple Air Interface Side-links on Adjacent Channels
AssigneeDISH Wireless L.L.C.
InventorsMehdi Alasti, Mariam Sorond, Siddhartha Chenumolu
Life of this patent
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Abstract
Various arrangements for using different air interfaces on adjacent frequency channels for side-link communications are presented. A first side-link channel may be split into a first bandwidth portion and the second bandwidth portion, in which the first bandwidth portion of the first side-link channel is directly adjacent to the second side-link channel. A first subcarrier spacing may be assigned to the first bandwidth portion of the first side-link channel. The second side-link channel may also use the first subcarrier spacing. A second subcarrier spacing may be assigned to the second bandwidth portion of the first side-link channel that differs from the first subcarrier spacing.
Claims20
A method for using different air interfaces on adjacent frequency channels for side-link communications, the method comprising:
- determining, by an air interface management server system, to set subcarrier spacing in a first side-link channel based on subcarrier spacing of a second side-link channel, wherein the first side-link channel uses a first air interface and the second side-link channel uses a second air interface;
- splitting, by the air interface management server system, the first side-link channel into a first bandwidth portion and the second bandwidth portion, wherein the first bandwidth portion of the first side-link channel is directly adjacent to the second side-link channel;
- assigning, by the air interface management server system, a first subcarrier spacing to the first bandwidth portion of the first side-link channel, wherein the second side-link channel uses the first subcarrier spacing;
- assigning, by the air interface management server system, a second subcarrier spacing to the second bandwidth portion of the first side-link channel, wherein the second subcarrier spacing differs from the first subcarrier spacing;
- and
- providing to a plurality of instances of user equipment (UE) that communicate using the first air interface, an indication of the first subcarrier spacing, the second subcarrier spacing, the first bandwidth portion, and the second bandwidth portion.
A system that uses different air interfaces in adjacent side-link frequency channels, the system comprising:
- a first air interface system;
- and
- a plurality of instances of user equipment (UE);
- and
- an air interface management server system is configured to:
- determine to set subcarrier spacing in a first side-link channel based on subcarrier spacing in a second side-link channel, wherein the first side-link channel uses a first air interface and the second side-link channel uses a second air interface;
- split the first side-link channel into a first bandwidth portion and the second bandwidth portion, wherein the first bandwidth portion of the first side-link channel is directly adjacent to the second side-link channel;
- assign a first subcarrier spacing to the first bandwidth portion of the first side-link channel, wherein the first side-link channel uses the first subcarrier spacing;
- assign a second subcarrier spacing to the second bandwidth portion of the first side-link channel, wherein the second subcarrier spacing differs from the first subcarrier spacing;
- and
- provide, to the plurality of instances of UE via the first air interface system, an indication of the first subcarrier spacing, the second subcarrier spacing, the first bandwidth portion, and the second bandwidth portion.
A vehicle system that uses different air interfaces on adjacent frequency channels for side-link communications, the vehicle system comprising:
- a first air interface component that performs side-link communications using a first air interface;
- a vehicle systems interface;
- and
- one or more processors, configured to:
- receive a subcarrier spacing assignment message via the first air interface, wherein:
- the subcarrier spacing assignment message indicates:
- a first bandwidth portion of a first side-link channel;
- a second bandwidth portion of the first side-link channel;
- a first subcarrier spacing for the first bandwidth portion;
- and a second subcarrier spacing for the second bandwidth portion;
- and
- the first bandwidth portion is adjacent to a second side-link channel that uses the first subcarrier spacing and a second air interface;
- cause a first side-link communication to be transmitted using the first air interface and the first bandwidth portion of the first side-link channel and the first subcarrier spacing;
- and
- cause a second side-link communication to be transmitted using the first air interface and the second bandwidth portion of the first side-link channel and the second subcarrier spacing.
Dependencies are inferred from the claim text.