RESOURCE ALLOCATION METHOD AND APPARATUS, RESOURCE DETERMINATION APPROACH AND METHOD

摘要

a resource allocation method includes: determining, by an access network device, a resource block allocation field in downlink control information, where a size of the resource block allocation field is + 5 bits , and is an uplink bandwidth configuration; where when a value indicated by the five least significant bits of the resource block allocation field is less than or equal to 20, more significant bits of the resource block allocation field indicate a narrow band, and the five less significant bits of the resource block allocation fields indicate that a resource is allocated within the indicated narrow band using an uplink resource allocation type 0; or when a value indicated by five less significant bits of the resource block allocation field is greater than 20, the resource block allocation field indicates a first resource indication value, where the first resource indication value indicates a number of resource block groups allocated on a terminal device and an index of a start resource block group allocated to the terminal device, the number of resource block groups allocated is greater than or equal to 3 and is less than or equal to 8, and a resource block group includes three resource blocks; and sending the downlink control information to the terminal device. the access network device can flexibly allocate a resource to the terminal device using the aforementioned method.