Patent ID: 8432875
Filing Date: 2013-04-30
Classification: H04L

Abstract:
1. A method for sending a message on a physical uplink control channel comprising the following steps of: establishing a mapping relation from indices of control channel elements and indices of downlink sub-frames to indices of uplink sub-frames and indices of physical uplink control channel utilizing a proportional relationship between uplink time slots and downlink time slots; acquiring an index k of a control channel element where a control signaling associated with downlink data is located and an index i of a sub-frame where the downlink data is located; calculating an index h of a physical uplink control channel corresponding to an ACK/NACK message and an index p of a uplink sub-frame where the ACK/NACK message is located using the index k, index i and the mapping relation; and sending the message in the physical uplink control channel corresponding to the index h and p; wherein the step of establishing the mapping relation comprises: dividing the control channel elements of all the downlink sub-frames into a number of groups according to a quantity of the uplink sub-frames, with each group mapping to one uplink sub-frame, mapping indices of the control channel elements in each group to indices of the physical uplink control channels of corresponding uplink sub-frames; or mapping indices of the downlink sub-frames to the uplink sub-frames according to the proportional relationship, mapping the control channel elements in the downlink sub-frames mapped to a same uplink sub-frame to the indices of the physical uplink control channels of the same uplink sub-frame.