Communication Method and Apparatus for Carrier Aggregation System
AssigneeHuawei Technologies Co., Ltd.
InventorsBo LI, Lei GUAN, Yongxia LV
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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.
Claims14
A communication method for carrier aggregation of time division duplexing (TDD) and frequency division duplexing (FDD), comprising:
- receiving, by a user equipment (UE), downlink information from a base station through a subframe n of a secondary cell;
- and
- feeding back, by the UE, an ACK/NACK of the downlink information 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.
A communication method for carrier aggregation of time division duplexing (TDD) and frequency division duplexing (FDD), comprising:
- receiving, by a user equipment (UE), downlink information sent by a base station through a subframe n of a secondary cell;
- feeding back, by the UE, an ACK/NACK of the downlink information 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.
A user equipment supporting carrier aggregation of time division duplexing (TDD) and frequency division duplexing (FDD), comprising:
- a receiver, configured to receive downlink information sent by a base station through a subframe n of a secondary cell;
- and
- a processor, configured to:
- feed back an ACK/NACK of the downlink information 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.
A user equipment supporting carrier aggregation of time division duplexing (TDD) and frequency division duplexing (FDD), comprising:
- a receiver, configured to receive downlink information sent by a base station through a subframe n of a secondary cell;
- and
- a processor, configured to feed back an ACK/NACK of the downlink information on a preset uplink subframe in 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.