METHOD, DEVICE AND SYSTEM FOR ASSIGNING ACK CHANNELS TO USERS

摘要

A method for assigning acknowledgement (ACK) channels to a user is used to feed back ACKs of a plurality of downlink sub-frames in one uplink sub-frame. According to the method, reserved ACK channels are divided into blocks according to the number of downlink sub-frames; each downlink sub-frame corresponds to one block; each block is divided into several sub-blocks; control channel element (CCE) sets within the same sub-frame are respectively mapped to different sub-blocks; and the ACK channels are assigned to the downlink sub-frames according to a sequence of increasing a mapping label d first and then increasing a sub-block label m. Thus, more unused ACK channels can be released to form resource blocks (RBs) for transmission on other channels, for example, for PUSCH transmission. Other methods for assigning ACK channels to a user, a device for assigning ACK channels to a user, and a communication system are further provided.

主权项

1. A method for receiving acknowledge/negative-acknowledgement (ACK/NACK) information by a base station, comprising:
obtaining a label nPUCCH(1) of an ACK channel of a control channel element (CCE) in a downlink sub-frame with a label of d among N downlink sub-frames in accordance to: (N−d−1)×NCCE,m, d×NCCE,m+1 and nCCE.
wherein m ∈ {0,1, . . . , max{Mi}−1} and NCCE,m≦nCCE≦NCCE,m+1−1,the nCCE is a label of the CCE,the NCCE,m represents at least one a label number of CCE in the downlink sub-frame when a number of symbols used for transmission of a physical downlink control channel (PDCCH) is equal to m,the NCCE,m+1 represents at least one a label number of CCE in the downlink sub-frame when the number of symbols used for transmission of the PDCCH is equal to m+1,the max{Mi} represents a number of symbols used for transmission of the PDCCH,and N is a positive integer, 0≦d