FIG. 5 is a diagram illustrating an example 500 of resource allocation for sidelink communications, in accordance with the present disclosure. As shown in FIG. 5, sidelink communications may take place using resource pools. Resource pools may be defined for sidelink transmission and sidelink reception. A resource pool may include one or more sub-channels in the frequency domain and one or more slots in the time domain. For example, the minimum resource allocation in the frequency domain may be a sub-channel, and the minimum resource allocation in the time domain may be a slot. In some aspects, one or more slots of a resource pool may be unavailable for sidelink communications. In some aspects, one or more resource pools may be configured (or pre-configured) for sidelink communications between UEs 120.
As shown by reference number 510, a first UE 120 may transmit resource reservation information (e.g., a sidelink grant) in SCI in a first sub-channel and a first slot of the resource pool. The sidelink grant may reserve resources in the first slot and up to two other future slots. For example, as shown in FIG. 5, SCI transmitted in the first slot and the first sub-channel may reserve resources for the first UE 120 in a second sub-channel and a fourth slot and in a third sub-channel and a third slot.
As shown by reference number 520, a second UE may transmit resource reservation information (e.g., a sidelink grant) in SCI in the first slot that occupies a plurality of sub-channels. The SCI may reserve a plurality of sub-channels for the second UE 120 in a fourth slot of the resource pool and in a seventh slot of the resource pool.
