Communication Method and Apparatus for Carrier Aggregation System
AssigneeHuawei Technologies Co., Ltd.
InventorsBo LI, Lei GUAN, Yongxia LV
Life of this patent
Estimating the term…
Abstract
Embodiments of the present invention provide a communication method for a carrier aggregation system. The communication method includes receiving physical downlink share channel PDSCH information sent by a base station through a subframe n of a secondary cell. If a subframe n of a primary cell is a downlink subframe, an ACK/NACK of the sent PDSCH information is fed back on a subframe m or a subframe p of the primary cell.
Claims18
A communication method for carrier aggregation of time division duplexing (TDD) and frequency division duplexing (FDD), comprising:
- sending downlink information to a user equipment through a subframe n of a secondary cell;
- and
- receiving an ACK/NACK of the downlink information sent by the user equipment on a subframe m of a primary cell;
- wherein n and m are subframe indexes, a subframe n of the primary cell is a downlink subframe, and the subframe m of the primary cell is determined according to an ACK/NACK timing relationship to which the subframe n of the primary cell corresponds.
A communication method for carrier aggregation of time division duplexing (TDD) and frequency division duplexing (FDD), comprising:
- sending downlink information to a user equipment through a subframe n of a secondary cell;
- and
- receiving an ACK/NACK of the downlink information sent by the user equipment on a preset uplink subframe of a primary cell;
- wherein a subframe n of the primary cell is an uplink subframe, a subframe p in the primary cell is a downlink subframe, n and p are subframe indexes, and the subframe p of the primary cell is determined according to an ACK/NACK timing relationship to which the subframe n of the secondary cell corresponds.
An apparatus supporting carrier aggregation of time division duplexing (TDD) and frequency division duplexing (FDD), comprising:
- a transmitter, configured to send downlink information to a user equipment through a subframe n of a secondary cell;
- and
- a receiver, configured to:
- receive an ACK/NACK of the downlink information sent by the user equipment on a subframe m of a primary cell;
- wherein n and m are subframe indexes, a subframe n of the primary cell is a downlink subframe, and the subframe m of a primary cell is determined according to an ACK/NACK timing relationship to which the subframe n of the primary cell corresponds.
An apparatus for a carrier aggregation of time division duplexing (TDD) and frequency division duplexing (FDD), comprising:
- a transmitter, configured to send downlink information to a user equipment through a subframe n of a secondary cell;
- and
- a receiver, configured to receive an ACK/NACK of the downlink information sent by the user equipment on a preset uplink subframe of a primary cell;
- wherein a subframe n of the primary cell is an uplink subframe, a subframe p of the primary cell is a downlink subframe, n and p are subframe indexes, and the subframe p of the primary cell is determined according to an ACK/NACK timing relationship to which the subframe n of the secondary cell corresponds.
Dependencies are inferred from the claim text.