| 摘要 |
Disclosed are a method and a device for sending and detecting an enhanced physical downlink control channel (E-PDCCH), relating to the field of wireless communications, and used for solving the problem of how to send downlink control information through the E-PDCCH. In the method, when a current subframe needs to send downlink control information to a terminal by adopting a frequency domain distributed transmission mode, a base station selects, according to the current aggregation level, at least one available distributed E-CCE in a distributed E-PDCCH time frequency resource area of the current subframe, and uses the selected distributed E-CCE to send the downlink control information to the terminal The present application solves the problem of how to transmit downlink control information through the E-PDCCH. |
| 主权项 |
1. A method for transmitting an Enhanced Physical Downlink Control Channel, E-PDCCH, wherein the method comprises:
when downlink control information needs to be transmitted to a User Equipment, UE, in a current sub-frame in a localized transmission mode, selecting, by a base station, an available localized Enhanced Control Channel Element, E-CCE, in a localized E-PDCCH time-frequency resource region of the current sub-frame at a current aggregation level; and transmitting, by the base station, the downlink control information to the UE in the selected localized E-CCE; wherein the localized E-PDCCH time-frequency resource region comprises at least one E-PDCCH resource cluster, each of which consists of at least one Physical Resource Block, PRB, pair consecutive in frequency domain in the current sub-frame; and each E-PDCCH resource cluster comprises at least one localized E-CCE, and each localized E-CCE is a set of a part of Resource Elements, REs, in a PRB pair. |
