Example methods and apparatus to poll in wireless communications based on assignments are disclosed. A disclosed example method involves receiving a poll from a network during a first radio block period and identifying a resource for use in sending requested information to the network in response to the poll. The resource occurs during a subsequent radio block period, and the subsequent radio block period is separated from the first radio block period by at least one radio block period not assigned to the mobile station for transmission by the mobile station. The example method also involves transmitting a response to the poll.