Uplink feedback method, system and device

A method of scheduling an uplink feedback of a user equipment, applicable to a dynamic sub-frame system, the method comprising:

• determining ACK/NACK resource, for carrying ACK/NACK corresponding to downlink data, in a sub-frame n according to a set of sub-frames including a sub-frame in which the downlink data is transmitted;
• and
• receiving ACK/NACK information corresponding to the downlink data over the ACK/NACK resource in the sub-frame n,
• wherein the set of subframe n includes a first set of sub-frames and/or a second set of sub-frames;
• the first set of sub-frames and/or the second, set of sub-frames are/is determined by obtained uplink/downlink sub-frame configuration information and flexible sub-frame information;
• the uplink/downlink sub-frame configuration information indicates the type of each sub-frame in a radio frame, and corresponding types of sub-frames include uplink sub-frames, downlink sub-frames and special sub-frames;
• and the flexible sub-frame information indicates the type of each sub-frame in radio frame, and corresponding types of sub-frames include uplink sub-frames, downlink sub-frames, special sub-frames and flexible sub-frames, wherein the flexible sub-frame can be used for transmission of uplink or downlink data, and n is a sub-frame number, wherein the first set of sub-frames includes at least all the sub-frames belonging to both a set P and a set Q;
• and the second set of sub-frames includes all the sub-frames belonging to the set Q but not the set P, wherein:
• the set P is determined according to the uplink/downlink sub-frame configuration information, and the set P includes the downlink sub-frames and/or the special sub-frames indicated by the uplink/downlink sub-frame configuration information;
• and
• the set Q is determined according to the flexible sub-frame information, and the set Q includes any one or more of the downlink sub-frames, the special sub-frames and the flexible sub-frames indicated by the flexible sub-frame information.

An uplink feedback apparatus, applicable to a dynamic sub-frame system, the apparatus comprising:

• an obtaining unit configured to determine ACK/NACK resource, for carrying ACK/NAC corresponding to downlink data, in a sub-frame n according to a set of sub-frames including a sub-frame in which the downlink data is received;
• and
• a transmitting unit configured to transmit ACK/NACK information corresponding to the downlink data over the ACK/NACK resource in the sub-frame n,
• wherein the set of sub-frames includes a first set of sub-frames and/or a second set of sub-frames;
• the first set of sub-frames and/or the second set of sub-frames are/is determined by obtained uplink/downlink sub-frame configuration information and flexible sub-frame information;
• the uplink/downlink subframe configuration information indicates the type of each sub-frame in a radio frame, and corresponding types of sub-frames include uplink sub-frames, downlink sub-frames and special sub-frames;
• and the flexible sub-frame information indicates the type of each sub-frame in a radio frame, and corresponding types of sub-frames, include uplink sub-frames, downlink sub-frames, special sub-frames and flexible sub-frames, wherein the flexible sub-frame can be used for transmission of uplink or downlink data, and n is a sub-frame number,
• wherein the first set of sub-frames includes at least all the sub-frames belonging to both a set P and a set Q;
• and the second set of sub-frames includes all the sub-frames belonging to the set Q but not the set P, wherein:
• the obtaining unit determines the set P according to the uplink/downlink sub-frame configuration information, and the set P includes the downlink sub-frames and/or the special sub-frames indicated by the uplink/downlink sub-frame configuration information;
• and
• the obtaining unit determines the set Q according to the flexible sub-frame information, and the set Q includes any one or more of the downlink sub-frames, the special sub-frames and the flexible sub-frames indicated by the flexible sub-frame information.