Method and device for transmitting response message
A technology of replying message and sending method, applied in the direction of error prevention/detection, digital transmission system, electrical components, etc. using return channel, can solve the problem of inability to complete ACK/NACK sending, etc., to achieve the effect of improving performance
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Embodiment 1
[0110]Embodiment 1: It is applicable to a UE configured to use channel selection to feed back ACK / NACK in an FDD system.
Embodiment 1-1
[0112] Such as Figure 5 As shown, the current base station configures two downlink component carriers / cells for a user equipment (UE), one of which is the primary downlink component carrier / cell (PCC / PCell), and the other is the secondary downlink component carrier / cell (SCC / Scell ); and both PCC and SCC are configured in SU-MIMO mode, that is, a transmission mode containing 2 transmission blocks; the base station configures UE to use channel selection to feed back ACK / NACK; and assumes that SCC uses cross-carrier scheduling , that is to say, the PDCCH corresponding to the SCC is sent on the PCC;
[0113] According to the configured transmission mode of the downlink component carrier / cell, the UE determines that it needs to feed back 4 ACK / NACK response messages, corresponding to the ACK / NACK of the first and second transmission blocks of the PCC and the first and second transmission blocks of the SCC respectively. ACK / NACK; the PUCCH channels corresponding to these 4 ACK / NA...
Embodiment 1-2
[0118] Such as Figure 6 As shown, the current base station configures two downlink component carriers / cells for a user equipment (UE), one of which is the primary downlink component carrier / cell (PCC / PCell), and the other is the secondary downlink component carrier / cell (SCC / Scell ); and both PCC and SCC are configured in SU-MIMO mode, that is, a transmission mode containing 2 transmission blocks; the base station configures UE to use channel selection to feed back ACK / NACK; and assumes that SCC does not use cross-carrier scheduling mode, that is to say, the PDCCH corresponding to the SCC is sent on the SCC;
[0119] According to the configured transmission mode of the downlink component carrier / cell, the UE determines that it needs to feed back 4 ACK / NACK response messages, corresponding to the ACK / NACK of the first and second transmission blocks of the PCC and the first and second transmission blocks of the SCC respectively. ACK / NACK; the PUCCH channels corresponding to th...
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