Control Channel Transmission Method and Apparatus

摘要

Embodiments of the present invention relate to the communications field and provide a control channel transmission method and apparatus. The method includes: grouping REs except a DMRS in each physical resource block pair of L determined physical resource block pairs used to transmit a control channel into N eREGs, and calculating the number of valid REs except other overheads in each eREG of the N eREGs; and then mapping each of the eCCEs onto M eREGs according to the number of valid REs included in each eREG of the N eREGs of each physical resource block pair, and sending the eCCE by using the resource elements included in the eREG.

主权项

1. A control channel transmission method, comprising:
determining L physical resource block pairs that are used to transmit a control channel, wherein L is an integer greater than 0 and the control channel is formed by at least one eCCE; grouping resource elements except a demodulation reference signal DMRS in each physical resource block pair of the L physical resource block pairs into N eREGs; calculating a number of valid resource elements except other overheads in each eREG of the N eREGs in each of the physical resource block pairs, wherein N is an integer greater than 0, and the other overheads comprise at least one of the following: a common reference signal CRS, a physical downlink control channel PDCCH, a physical broadcast channel PBCH, a positioning reference signal PRS, a primary synchronization signal PSS, and a secondary synchronization signal SSS; mapping each of the eCCEs onto M eREGs according to the number of valid resource elements comprised in each eREG of the N eREGs, wherein M is an integer greater than 0; and sending the eCCE by using the resource elements comprised in the eREG.