A method of wireless communication, the method comprising: receiving a first transmission and a second transmission; determining the first transmission is associated with pre-timed acknowledgement rules; determining the second transmission is associated with on-demand acknowledgement rules, wherein the pre-timed acknowledgement rules and the on-demand acknowledgement rules each include a bundling condition that allow bundling of a pre-timed acknowledgement transmission, associated with the first transmission, with an on-demand acknowledgement transmission, associated with the second transmission, wherein the bundling condition is whether a timing of the pre-timed acknowledgement transmission and the on-demand acknowledgement transmission are within a pre-determined duration range, the method further comprising: determining whether a first set of resources for the pre-timed acknowledgement rules and a second set of resources for the on-demand acknowledgement rules are within the pre-determined duration range; and bundling the pre-timed acknowledgement transmission and the on-demand acknowledgement transmission into a single transmission in response to the first set of resources for the pre-timed acknowledgement rules and the second set of resources for the on-demand acknowledgement rules being within the pre-determined duration range; and transmitting the single transmission comprising the bundled pre-timed acknowledgement transmission and the on-demand acknowledgement transmission. receiving a first transmission and a second transmission; determining the first transmission is associated with pre-timed acknowledgement rules; determining the second transmission is associated with on-demand acknowledgement rules, wherein the pre-timed acknowledgement rules and the on-demand acknowledgement rules each include a bundling condition that allow bundling of a pre-timed acknowledgement transmission, associated with the first transmission, with an on-demand acknowledgement transmission, associated with the second transmission, wherein the bundling condition is whether a timing of the pre-timed acknowledgement transmission and the on-demand acknowledgement transmission are within a pre-determined duration range, the method further comprising: determining whether a first set of resources for the pre-timed acknowledgement rules and a second set of resources for the on-demand acknowledgement rules are within the pre-determined duration range; and bundling the pre-timed acknowledgement transmission and the on-demand acknowledgement transmission into a single transmission in response to the first set of resources for the pre-timed acknowledgement rules and the second set of resources for the on-demand acknowledgement rules being within the pre-determined duration range; and transmitting the single transmission comprising the bundled pre-timed acknowledgement transmission and the on-demand acknowledgement transmission. determining whether a first set of resources for the pre-timed acknowledgement rules and a second set of resources for the on-demand acknowledgement rules are within the pre-determined duration range; and bundling the pre-timed acknowledgement transmission and the on-demand acknowledgement transmission into a single transmission in response to the first set of resources for the pre-timed acknowledgement rules and the second set of resources for the on-demand acknowledgement rules being within the pre-determined duration range; and transmitting the single transmission comprising the bundled pre-timed acknowledgement transmission and the on-demand acknowledgement transmission.