Method and device for data transmission based on carrier aggregation (CA) technology

摘要

The present invention discloses a method and device for data transmission based on carrier aggregation (CA) technology. The method and device are used for ensuring that user equipments can work normally, when the multiple cells aggregated from the user equipments supporting CA technology have different time division duplex (TDD) uplink/downlink (UL/DL) configurations. The method includes: a base station configures at least two time division duplex uplink/downlink carrier TDD UL/DL configuration collections for the user equipments, wherein each TDD UL/DL configuration collection includes at least one cell; the base station respectively configures one cell in each TDD UL/DL configuration collection to be an especial cell (Ecell).

主权项

1. A Carrier Aggregation, CA, based data transmission method, comprising:
an evolved NodeB, eNB, configuring a user equipment with at least two Time Division Duplex Uplink and Downlink, TDD UL/DL, configuration sets, wherein each TDD UL/DL configuration set comprises at least one cell; and the eNB configuring a cell respectively in each of the at least two TDD UL/DL configuration sets as an Especial Cell, Ecell; wherein the eNB configuring a cell in each TDD UL/DL configuration set as an Ecell comprises: when the TDD UL/DL configuration set comprises only one cell, then configuring the cell as an Ecell; and when the TDD UL/DL configuration set comprises at least two cells, then configuring a cell with a highest channel quality as an Ecell or configuring a cell subject to a lowest interference as an Ecell or configuring a cell with the highest channel quality and subject to the lowest interference as an Ecell or configuring a cell with a highest or lowest cell index as an Ecell.