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1. (WO2017157151) DATA TRANSMISSION METHOD AND DEVICE

Pub. No.:    WO/2017/157151    International Application No.:    PCT/CN2017/074570
Publication Date: Fri Sep 22 01:59:59 CEST 2017 International Filing Date: Fri Feb 24 00:59:59 CET 2017
IPC: H04W 72/04
Applicants: ZTE CORPORATION
中兴通讯股份有限公司
Inventors: WU, Yumin
吴昱民
Title: DATA TRANSMISSION METHOD AND DEVICE
Abstract:
A data transmission method and device. An Scell on a first base station and a Pcell on a second base station constitute carrier aggregation. The data transmission method comprises: when data of a UE needs to be transmitted by means of an Scell, a first base station sending, to a second base station, DCI corresponding to data to be transmitted via an interface between the base stations; the second base station packaging the data to be transmitted into a corresponding MAC PDU according to the received DCI, and then sending same to the first base station; and the first base station sending the MAC PDU to the UE, and acquiring feedback information about data sending by means of an HARQ entity, corresponding to the SCell, in the first base station or the second base station.