According to a seventh aspect, an uplink information sending apparatus is provided, including: an obtaining module, configured to obtain DCI and downlink data, where at least one of the DCI or the downlink data carries a portion of uplink scheduling information of the uplink information sending apparatus, the uplink scheduling information is indication information required by the uplink information sending apparatus for sending uplink information, the uplink information is used to indicate whether the obtaining module receives the downlink data correctly, the portion of the uplink scheduling information is specifically indication information excluding a specific parameter of the uplink information sending apparatus, and the specific parameter includes at least one of an uplink MCS or information used to indicate duration for sending the uplink information; and a sending module, configured to send the uplink information according to the portion of the uplink scheduling information and the specific parameter, where the specific parameter is a parameter preset in the uplink information sending apparatus or a parameter received by the uplink information sending apparatus from a system message.